2 dice rollFree 2 dice roll Calculator - Calculates the probability for the following events in a pair of fair dice rolls:
* Probability of any sum from (2-12)
* Probability of the sum being less than, less than or equal to, greater than, or greater than or equal to (2-12)
* The sum being even
* The sum being odd
* The sum being a prime number
* The sum being a non-prime number
* Rolling a list of numbers i.e. (2,5,6,12)
* Simulate (n) Monte Carlo two die simulations.
2 dice calculator
A car repair bill was $441. This included $153 for parts and four hours of labor . Find the hourly rA car repair bill was $441. This included $153 for parts and four hours of labor . Find the hourly rate I was charge for labor
Subtract the cost of parts from the total repair bill to get the labor cost:
Labor Cost = Total Bill - Parts Cost
Labor Cost = 441 - 153
Labor Cost = 288
Labor Cost can be broken down into Labor divided by hours
Hourly Labor Rate = Labor Cost / Labor Hours
Hourly Labor Rate = = 288 / 4
Hourly Labor Rate = [B]72[/B]
A pair of dice are rolled. Find the probability for P(Not 2 or Not 12).A pair of dice are rolled. Find the probability for P(Not 2 or Not 12).
P(Not 2 or Not 12) = 1 - P(2) - P(12)
P(Not 2 or Not 12) = 1 - [URL='https://www.mathcelebrity.com/2dice.php?gl=1&pl=2&opdice=1&rolist=+2%2C3%2C9%2C10&dby=2%2C3%2C5&ndby=4%2C5&montect=+100']1/36[/URL] - [URL='https://www.mathcelebrity.com/2dice.php?gl=1&pl=12&opdice=1&rolist=+2%2C3%2C9%2C10&dby=2%2C3%2C5&ndby=4%2C5&montect=+100']1/36[/URL]
P(Not 2 or Not 12) = 34/36
[URL='https://www.mathcelebrity.com/fraction.php?frac1=34%2F36&frac2=3%2F8&pl=Simplify']P(Not 2 or Not 12)[/URL] = [B]17/18[/B]
A pair of dice is cast. what is the probablitly that the sum is less than 5A pair of dice is cast. what is the probablitly that the sum is less than 5?
Using our [URL='http://www.mathcelebrity.com/2dice.php?gl=4&pl=5&opdice=1&rolist=+2%2C3%2C9%2C10&dby=2%2C3%2C5&ndby=4%2C5&montect=+100']two dice calculator[/URL], we get 1/6 or 16.67%
A pair of dice is rolled. Find the probability of rolling a sum of not less than 5A pair of dice is rolled. Find the probability of rolling a sum of not less than 5.
The phrase [I]not less than[/I] also means greater than or equal to. So we [URL='https://www.mathcelebrity.com/2dice.php?gl=3&pl=5&opdice=1&rolist=+&dby=&ndby=&montect=+']use our 2 dice calculator for a sum roll of 5 or greater[/URL] and we get:
[B]5/6[/B]
A pair of jeans are priced at $129.99 there is a discount of 20% and sales tax of 8% what is the finA pair of jeans are priced at $129.99 there is a discount of 20% and sales tax of 8% what is the final cost
[U]Calculate discounted price:[/U]
Discounted price = Full price * (100% - discount percent)
Discounted price = 129.99 * (100% - 20%)
Discounted price = 129.99 * 80%
Since 80% = 0.8, we have:
Discounted price = 129.99 * 0.8
Discounted price = 103.99
[U]Calculate after tax cost:[/U]
Tax Rate = Tax percent/100
Tax Rate = 8/100
Tax Rate = 0.08
After Tax cost = Discounted price * (1 + Tax rate)
After Tax cost = 103.99 * (1 + 0.08)
After Tax cost = 103.99 * 1.08
After Tax cost = [B]112.31[/B]
A pair of numbers has an HCF (Highest Common Factor) of 3, and an LCM (Lowest Common Multiple) ofA pair of numbers has an HCF (Highest Common Factor) of 3, and an LCM (Lowest Common Multiple) of 45 . If one of the numbers in the pair is 15 , what is the other number?
[LIST=1]
[*]Prime Factorization for 15 is 3 * 5
[*]Prime Factorization for 9 is 3 * 3
[*]LCM of (9, 15) = 35
[/LIST]
[URL='https://www.mathcelebrity.com/gcflcm.php?num1=9&num2=15&num3=&pl=GCF+and+LCM']Check out this link here to see the details[/URL]
A pair of shoes cost $250. The price was decreased by 20%. A week later shoes were mark down again bA pair of shoes cost $250. The price was decreased by 20%. A week later shoes were mark down again by 25%. What is the final price of the shoes?
20% is 0.2. 25% is 0.25. A decrease is a reduction, so we have:
Final Price = 250 * (1 - 0.2) * (1 - 0.25)
Final Price = 250 * 0.8 * 0.75
Final Price = [B]150[/B]
A pair of standard dice is rolled, how many possible outcomes are thereA pair of standard dice is rolled, how many possible outcomes are there?
We want the number of outcomes in the sample space.
The first die has 6 possibilities 1-6.
The second die has 6 possibilities 1-6.
Our sample space count is 6 x 6 = [B]36 different outcomes
[/B]
[LIST=1]
[*](1, 1)
[*](1, 2)
[*](1, 3)
[*](1, 4)
[*](1, 5)
[*](1, 6)
[*](2, 1)
[*](2, 2)
[*](2, 3)
[*](2, 4)
[*](2, 5)
[*](2, 6)
[*](3, 1)
[*](3, 2)
[*](3, 3)
[*](3, 4)
[*](3, 5)
[*](3, 6)
[*](4, 1)
[*](4, 2)
[*](4, 3)
[*](4, 4)
[*](4, 5)
[*](4, 6)
[*](5, 1)
[*](5, 2)
[*](5, 3)
[*](5, 4)
[*](5, 5)
[*](5, 6)
[*](6, 1)
[*](6, 2)
[*](6, 3)
[*](6, 4)
[*](6, 5)
[*](6, 6)
[/LIST]
A Pairs of fair dice is tossed. What is the probability of not getting a sum 7 or 8?A Pairs of fair dice is tossed. What is the probability of not getting a sum 7 or 8?
Not a 7 or 8 means 2 - 6 or 9 - 12
[URL='https://www.mathcelebrity.com/2dice.php?gl=5&pl=6&opdice=1&rolist=+&dby=&ndby=&montect=+']Using our 2-dice calculator[/URL], P(2 - 6) = 5/12
[URL='https://www.mathcelebrity.com/2dice.php?gl=3&pl=9&opdice=1&rolist=+&dby=&ndby=&montect=+']Using our 2-dice calculator[/URL], P(9 - 12) = 5/18
Since the sum could be either of these, we add probabilities:
P(Not a 7 or 8) = P(2 - 6) + P(9 - 12)
P(Not a 7 or 8) = 5/12 + 5/18
[URL='https://www.mathcelebrity.com/fraction.php?frac1=5%2F12&frac2=5%2F18&pl=Add']P(Not a 7 or 8) [/URL]= [B]25/36[/B]
A professor wanted to test all possible pairwise comparisons among six means. How many comparisons dA professor wanted to test all possible pairwise comparisons among six means. How many comparisons did he need to compare?
a. 5
b. 6
c. 10
d. 15
[B]d. 15[/B] using our [URL='http://www.mathcelebrity.com/permutation.php?num=6&den=2&pl=Combinations']combinations calculator[/URL]
A professor wants to test all possible pairwise comparisons among three means. If we need to maintaiA professor wants to test all possible pairwise comparisons among three means. If we need to maintain an experiment-wise alpha of 0.05, what is the error rate per comparison after applying Bonferroni correction?
We are given:
[LIST]
[*]α = 0.05
[*]n = 3
[/LIST]
Bonferroni Correction = α/n
Bonferroni Correction = 0.05/3
Bonferroni Correction = [B]0.01666666667[/B]
A repair bill for a car is $648.45. The parts cost $265.95. The labor cost is $85 per hour. Write anA repair bill for a car is $648.45. The parts cost $265.95. The labor cost is $85 per hour. Write and solve an equation to find the number of hours spent repairing the car.
Let h be the number of hours spent repairing the car. We set up the cost function C(h):
C(h) = Labor Cost per hour * h + Parts Cost
We're given C(h) = 648.85, parts cost = 265.95, and labor cost per hour of 85, so we have:
85h + 265.95 = 648.85
To solve this equation, we [URL='https://www.mathcelebrity.com/1unk.php?num=85h%2B265.95%3D648.85&pl=Solve']type this into our search engine[/URL] and we get:
h = [B]4.5[/B]
A repair bill for your car is $553. The parts cost $265. The labor cost is $48 per hour. Write and sA repair bill for your car is $553. The parts cost $265. The labor cost is $48 per hour. Write and solve an equation to find the number of hours of labor spent repairing the car
Set up the cost equation C(h) where h is the number of labor hours:
C(h) = Labor Cost per hour * h + Parts Cost
We're given C(h) = 553, Parts Cost = 265, and Labor Cost per Hour = 48. So we plug these in:
48h + 265 = 553
To solve this equation for h, we [URL='https://www.mathcelebrity.com/1unk.php?num=48h%2B265%3D553&pl=Solve']type it in our math engine[/URL] and we get:
h = [B]6 hours[/B]
A repair will require 3 hours at $40 per hour. How much will the total/labor cost be for this job?A repair will require 3 hours at $40 per hour. How much will the total/labor cost be for this job?
Total cost = Hourly Labor Rate * hours
Total cost = $40 * 3
Totaal cost = [B]$120[/B]
a repairman charged $93.06. The price included 2 hours of labor and a $40 service charge. How much da repairman charged $93.06. The price included 2 hours of labor and a $40 service charge. How much does the repairman charge per hour?
Subtract the service charge:
93.06 - 40 = 53.06
53.06/2 hours = [B]$26.53 per hour[/B].
A shoe store was having a sale where 2 pairs of Brand A shoes cost $23.10 and 3 pairs of Brand B shoA shoe store was having a sale where 2 pairs of Brand A shoes cost $23.10 and 3 pairs of Brand B shoes cost $35.85. Which brand is the better buy?
[URL='https://www.mathcelebrity.com/betterbuy.php?p1=23.10&p2=35.85&q1=2&q2=3&pl=Better+Buy']Using our better buy calculator[/URL]:
[SIZE=5][B]Calculate Unit Price[/B][/SIZE]
Unit Price = Price/Quantity
[SIZE=5][B]Calculate Unit Price 1:[/B][/SIZE]
Unit Price Brand A = P1/Q1
Unit Price Brand A = 23.10/2
Unit Price Brand A = 11.55
[SIZE=5][B]Calculate Unit Price 2:[/B][/SIZE]
Unit Price Brand B = P2/Q2
Unit Price Brand B = 35.85/3
Unit Price Brand B = 11.95
Since Brand A's Unit price is lower, [B]Brand A is the better buy
[MEDIA=youtube]Q16iZn6Uer8[/MEDIA][/B]
A tire repair shop charges $5 for tool cost and $2 for every minute the worker spends on the repair.A tire repair shop charges $5 for tool cost and $2 for every minute the worker spends on the repair. A) Write an equation of the total cost of repair, $y, in terms of a total of x minutes of repair.
y = Variable Cost + Fixed Cost
y = Cost per minute of repair * minutes of repair + Tool Cost
[B]y = 2x + 5[/B]
Amelia had n shoes in her closet. How many pair of shoes did she have?Amelia had n shoes in her closet. How many pair of shoes did she have?
1 pair = 2 shoes, so we have:
n[B]/2[/B]
Amy and ryan operate a car dealing and repair service. For a car detailing (full wash outside and inAmy and ryan operate a car dealing and repair service. For a car detailing (full wash outside and inside. Amy charges 40$ and Ryan charges 50$ . In addition they charge a hourly rate. Amy charges $35/h and ryan charges $30/h. How many hours does amy and ryan have to work to make the same amount of money?
Set up the cost functions C(h) where h is the number of hours.
[U]Amy:[/U]
C(h) = 35h + 40
[U]Ryan:[/U]
C(h) = 30h + 50
To make the same amount of money, we set both C(h) functions equal to each other:
35h + 40 = 30h + 50
To solve for h, we [URL='https://www.mathcelebrity.com/1unk.php?num=35h%2B40%3D30h%2B50&pl=Solve']type this equation into our search engine[/URL] and we get:
h = [B]2[/B]
An auto repair bill is $126 for parts and $35 for each hour of labor. If h is the number of hours ofAn auto repair bill is $126 for parts and $35 for each hour of labor. If h is the number of hours of labor, express the amount of the repair bill in terms of number of hours of labor.
Set up cost function, where h is the number of hours of labor:
[B]C(h) = 35h + 136[/B]
An auto repair bill was $563. This includes $188 for parts and $75 for each hour of labor. Find theAn auto repair bill was $563. This includes $188 for parts and $75 for each hour of labor. Find the number of hours of labor
Let the number of hours of labor be h. We have the cost function C(h):
C(h) = Hourly Labor Rate * h + parts
Given 188 for parts, 75 for hourly labor rate, and 563 for C(h), we have:
75h + 188 = 563
To solve this equation for h, we [URL='https://www.mathcelebrity.com/1unk.php?num=75h%2B188%3D563&pl=Solve']type it in our search engine[/URL] and we get:
h = [B]5[/B]
Cam is 3 years older than Lara. If their combined age is 63, determine their ages by solving an apprCam is 3 years older than Lara. If their combined age is 63, determine their ages by solving an appropriate pair of equations.
Let Cam's age be c.
Let Lara's age be l.
We're given two equations:
[LIST=1]
[*]c = l + 3 (Since older means we add)
[*]c + l = 63
[/LIST]
To solve this system of equations, we substitute equation (1) into equation (2) for c:
l + 3 + l = 63
To solve this equation for l, we [URL='https://www.mathcelebrity.com/1unk.php?num=l%2B3%2Bl%3D63&pl=Solve']type it in our search engine [/URL]and we get:
l = [B]30
[/B]
Now, we take l = 30 and substitute it in equation (1) to solve for c:
c = 30 + 3
c = [B]33[/B]
Cam is 3 years older than Lara. If their combined age is 63, determine their ages by solving an apprCam is 3 years older than Lara. If their combined age is 63, determine their ages by solving an appropriate pair of equations.
Let Cam's age be c. Let Lara's age be l. We're given two equations:
[LIST=1]
[*]c = l + 3 <-- older means we add
[*]c + l = 63 <-- combined ages mean we add
[/LIST]
Substitute equation (1) into equation (2):
l + 3 + l = 63
Combine like terms to simplify our equation:
2l + 3 = 63
To solve for l, [URL='https://www.mathcelebrity.com/1unk.php?num=2l%2B3%3D63&pl=Solve']we type this equation into our search engine[/URL] and we get:
l = [B]30[/B]
Now, we plug l = 30 into equation (1) to solve for c:
c = 30 + 3
c = [B]33[/B]
camille has 7 blouses,2 skirts,3 pair of short pants and 5 pair of jeans.how many different outfitscamille has 7 blouses,2 skirts,3 pair of short pants and 5 pair of jeans.how many different outfits can he wear,assuming that he always wear a belt.
Using the fundamental rule of counting, we find total amount of different outfits as follows:
7 blouses * 2 skirts * 3 pair of short pants * 5 pair of jeans = [B]210 outfits[/B].
Carol bought a pair of jeans for $12.95 and a belt for $3.79. The sales tax is $1.01. Carol gave theCarol bought a pair of jeans for $12.95 and a belt for $3.79. The sales tax is $1.01. Carol gave the store clerk a $20.00 bill. How much change should she get back?
Calculate total cost:
Total cost = Jeans + Belt + Sales Tax
Total cost = $12.95 + $3.79 + $1.01
Total cost = $17.75
Calculate Change
Change = Carol's payment - Total cost
Change = $20 - $17.75
Change = [B]$2.25[/B]
Chinese Remainder TheoremFree Chinese Remainder Theorem Calculator - Given a set of modulo equations in the form:
x ≡ a mod b
x ≡ c mod d
x ≡ e mod f
the calculator will use the Chinese Remainder Theorem to find the lowest possible solution for x in each modulus equation.
Given that the ni portions are not pairwise coprime and you entered two modulo equations, then the calculator will attempt to solve using the Method of Successive Subsitution
Claire makes bracelets using blue and red beads.Each bracelet has 20 red beads and 5 blue beads.WritClaire makes bracelets using blue and red beads.Each bracelet has 20 red beads and 5 blue beads.Write an ordered pair to represent the number of red beads and blue beads Claire will use to make 8 bracelets.
8 bracelets gives you 8 x 20 = 160 red beads and 8 * 5 = 40 blue beads.
The ordered pair is[B] (160, 40)[/B]
Dan makes 11 an hour working at the local grocery store. Over the past year he has saved 137.50 towaDan makes 11 an hour working at the local grocery store. Over the past year he has saved 137.50 toward a new pair of retro sneakers. If sneakers cost 240, how many hours will he need to be able to buy the sneakers?
Figure out his remaining savings target:
240 - 137.50 = 102.50
Let x equal the number of remaining hours Dan needs to work
11x = 102.50
Divide each side by 11
x = 9.318
We round up for a half-hour to 9.5, or a full hour to 10.
Decompose Number PairsFree Decompose Number Pairs Calculator - Decomposes a number into number pairs of sums.
During the first lesson on coordinate grids, Audrey is asked by her teacher to find the ordered pairDuring the first lesson on coordinate grids, Audrey is asked by her teacher to find the ordered pair (2,5) on the coordinate grid. Starting from (0,0) which movement should Audrey complete first?
We move [B]2 spaces right (positive x), and then 5 spaces up (positive 5)[/B]
Each pair of skates has 8 wheels.if the skating rink has 87 pairs of skates. How many wheels are atEach pair of skates has 8 wheels.if the skating rink has 87 pairs of skates. How many wheels are at the rink?
Total Wheels = Pairs of Skates * 8 wheels per pair
Total Wheels = 87 * 8
Total Wheels = [B]609[/B]
FactorizationFree Factorization Calculator - Given a positive integer, this calculates the following for that number:
1) Factor pairs and prime factorization and prime power decomposition
2) Factors and Proper Factors
3) Aliquot Sum
Find an equation of the line containing the given pair of points (1,5) and (3,6)Find an equation of the line containing the given pair of points (1,5) and (3,6).
Using our[URL='https://www.mathcelebrity.com/slope.php?xone=1&yone=5&slope=+2%2F5&xtwo=3&ytwo=6&pl=You+entered+2+points'] point slope calculator[/URL], we get:
[B]y = 1/2x + 9/2[/B]
FunctionFree Function Calculator - Takes various functions (exponential, logarithmic, signum (sign), polynomial, linear with constant of proportionality, constant, absolute value), and classifies them, builds ordered pairs, and finds the y-intercept and x-intercept and domain and range if they exist. Table of Functions Calculator
Function TestFree Function Test Calculator - Checks to see if a set of ordered pairs represents a function
Greatest Common Factor and Least Common MultipleFree Greatest Common Factor and Least Common Multiple Calculator - Given 2 or 3 numbers, the calculator determines the following:
* Greatest Common Factor (GCF) using Factor Pairs
* Rewrite Sum using the Distributive Property and factoring out the GCF
* Least Common Multiple (LCM) / Least Common Denominator (LCD) using Factor Pairs
* GCF using the method of Successive Division
* GCF using the Prime Factorization method
* Determine if the numbers are coprime and twin prime
Identify a pair of factors of -35 that has a sum of -2Identify a pair of factors of -35 that has a sum of -2.
If we [URL='https://www.mathcelebrity.com/factoriz.php?num=-35&pl=Show+Factorization']type in [I]factor -35[/I] into our search engine[/URL], we see 4 factor pairs.
When we add up the factors for each pair, we see [B]7, -5[/B] added together gives us 2.
if joey has 5 swimsuits, 3 bicycles, and 4 pairs of running shoes, how many ways are there for joeyif joey has 5 swimsuits, 3 bicycles, and 4 pairs of running shoes, how many ways are there for joey to choose
Using the Fundamental Rule of Counting, we have:
5 swimsuits * 3 bicycles * 4 pairs of running shoes = [B]60 possible choices[/B]
In one day, a store sells 14 pairs of jeans. The 14 jeans represent 20% of the total number of itemsIn one day, a store sells 14 pairs of jeans. The 14 jeans represent 20% of the total number of items sold that day. How many items did the store sell in one day? Explain or show how you got your answer.
14 = 20%s where s is the number of items sold in one day.
We can write 20% as 0.2, so we have:
0.2s = 14
[URL='https://www.mathcelebrity.com/1unk.php?num=0.2s%3D14&pl=Solve']Type this equation into the search engine[/URL], and we get:
s = [B]70[/B]
Is (9, 6) a solution to the equation y = x - 3?Is (9, 6) a solution to the equation y = x - 3?
The ordered pair (x, y) = (9, 6)
Plug in x = 9 into y = x - 3:
y = 9 - 3
y = 6
[B]Yes, (9, 6) is a solution to the equation y = x - 3[/B]
it costs $75.00 for a service call from shearin heating and air conditioning company. the charge forit costs $75.00 for a service call from shearin heating and air conditioning company. the charge for labor is $60.00 . how many full hours can they work on my air conditioning unit and still stay within my budget of $300.00 for repairs and service?
Our Cost Function is C(h), where h is the number of labor hours. We have:
C(h) = Variable Cost * Hours + Fixed Cost
C(h) = 60h + 75
Set C(h) = $300
60h + 75 = 300
[URL='https://www.mathcelebrity.com/1unk.php?num=60h%2B75%3D300&pl=Solve']Running this problem in the search engine[/URL], we get [B]h = 3.75[/B].
Jenny went shoe shopping. Now she has 5 more pairs than her brother. Together they have 25 pairs. HoJenny went shoe shopping. Now she has 5 more pairs than her brother. Together they have 25 pairs. How many pairs does Jenny have and how many pairs does her brother have?
[U]Let j be the number of shoes Jenny has and b be the number of s hoes her brother has. Set up 2 equations:[/U]
(1) b + j = 25
(2) j = b + 5
[U]Substitute (2) into (1)[/U]
b + (b + 5) = 25
[U]Group the b terms[/U]
2b + 5 = 25
[U]Subtract 5 from each side[/U]
2b = 20
[U]Divide each side by b[/U]
[B]b = 10
[/B]
[U]Substitute b = 10 into (2)[/U]
j = 10 + 5
[B]j = 15[/B]
Jessica has 16 pairs of shoes. She buys 2 additional pair of shoes every month. What is the slope inJessica has 16 pairs of shoes. She buys 2 additional pair of shoes every month. What is the slope in this situation?
Set up a graph where months is on the x-axis and number of shoes Jessica owns is on the y-axis.
[LIST=1]
[*]Month 1 = (1, 18)
[*]Month 2 = (2, 20)
[*]Month 3 = (3, 22)
[*]Month 4 = (4, 24)
[/LIST]
You can see for every 1 unit move in x, we get a 2 unit move in y.
Pick any of these 2 points, and [URL='https://www.mathcelebrity.com/slope.php?xone=3&yone=22&slope=+2%2F5&xtwo=4&ytwo=24&pl=You+entered+2+points']use our slope calculator[/URL] to get:
Slope = [B]2[/B]
Jessica has at most to spend $40 and a pair of pants and shirts. She finds a pair of pants for $12.Jessica has at most to spend $40 and a pair of pants and shirts. She finds a pair of pants for $12. Shirts cost $4 each. How many shirts can she buy?
[U]Calculate the amount for shirts:[/U]
Amount for shirts = Total Spend - Cost of pants
Amount for shirts = 40 - 12
Amount for shirts = 28
Calculate the amount of t-shirts Jessica can buy:
T-shirts to buy = Amount for shirts / cost per shirt
T-shirts to buy = 28/4
T-shirts to buy = [B]7[/B]
Karen wants to buy new shoes. There is a promotion for 3 pairs of sneakers for $450.75, how much wouKaren wants to buy new shoes. There is a promotion for 3 pairs of sneakers for $450.75, how much would one pair of sneakers cost?
Cost per sneaker = Total Cost / number of sneakers
Cost per sneaker = 450.75/3
Cost per sneaker = [B]150.25[/B]
Kelly took clothes to the cleaners 3 times last month. First, she brought 4 shirts and 1 pair of slaKelly took clothes to the cleaners 3 times last month. First, she brought 4 shirts and 1 pair of slacks and paid11.45. Then she brought 5 shirts, 3 pairs of slacks, and 1 sports coat and paid 27.41. Finally, she brought 5 shirts and 1 sports coat and paid 16.94. How much was she charged for each shirt, each pair of slacks, and each sports coat?
Let s be the cost of shirts, p be the cost of slacks, and c be the cost of sports coats. We're given:
[LIST=1]
[*]4s + p = 11.45
[*]5s + 3p + c = 27.41
[*]5s + c = 16.94
[/LIST]
Rearrange (1) by subtracting 4s from each side:
p = 11.45 - 4s
Rearrange (3)by subtracting 5s from each side:
c = 16.94 - 5s
Take those rearranged equations, and plug them into (2):
5s + 3(11.45 - 4s) + (16.94 - 5s) = 27.41
Multiply through:
5s + 34.35 - 12s + 16.94 - 5s = 27.41
[URL='https://www.mathcelebrity.com/1unk.php?num=5s%2B34.35-12s%2B16.94-5s%3D27.41&pl=Solve']Group like terms using our equation calculator [/URL]and we get:
[B]s = 1.99 [/B] <-- Shirt Cost
Plug s = 1.99 into modified equation (1):
p = 11.45 - 4(1.99)
p = 11.45 - 7.96
[B]p = 3.49[/B] <-- Slacks Cost
Plug s = 1.99 into modified equation (3):
c = 16.94 - 5(1.99)
c = 16.94 - 9.95
[B]c = 6.99[/B] <-- Sports Coat cost
Lisa has $150 at most to spend on clothes. She wants to buy a pair of jeans for $58 and will spend tLisa has $150 at most to spend on clothes. She wants to buy a pair of jeans for $58 and will spend the rest on t-shirts that cost $14 each.
Let the number of t-shirts be t. Lisa can spend up to, but not more than 150. We have the following inequality:
14t + 58 <= 150
To solve this inequality, we [URL='https://www.mathcelebrity.com/1unk.php?num=14j%2B58%3C%3D150&pl=Solve']type it in our search engine[/URL] and we get:
t <= 6.57
To round to a whole number, we round down to [B]t = 6 [/B]
Mr turner sent his car to the workshop for repair work as well as to change 4 tires. Mr turner paidMr turner sent his car to the workshop for repair work as well as to change 4 tires. Mr turner paid $1035 in all. The repair work cost 5 times the price of each tire. The mechanic told Mr. turner that the repair work cost $500. Explain the mechanic’s mistake
Let the cost for work be w. Let the cost for each tire be t. We're given;
[LIST=1]
[*]w = 5t
[*]w + 4t = 1035
[/LIST]
Substitute equation 1 into equation 2:
(5t) + 4t = 1035
[URL='https://www.mathcelebrity.com/1unk.php?num=%285t%29%2B4t%3D1035&pl=Solve']Type this equation into our search engine[/URL], and we get:
t = 115
Substitute this into equation (1):
w = 5(115)
w = [B]575[/B]
The mechanic underestimated the work cost.
Ordered PairFree Ordered Pair Calculator - This calculator handles the following conversions:
* Ordered Pair Evaluation and symmetric points including the abcissa and ordinate
* Polar coordinates of (r,θ°) to Cartesian coordinates of (x,y)
* Cartesian coordinates of (x,y) to Polar coordinates of (r,θ°)
* Quadrant (I,II,III,IV) for the point entered.
* Equivalent Coordinates of a polar coordinate
* Rotate point 90°, 180°, or 270°
* reflect point over the x-axis
* reflect point over the y-axis
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Paired Means DifferenceFree Paired Means Difference Calculator - Calculates an estimation of confidence interval for a small or large sample difference of data. Confidence interval for paired means
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String Comparison AlgorithmsFree String Comparison Algorithms Calculator - Given two strings A and B, this calculates the following items:
1) Similar Text Pair Ranking Score
2) Levenshtein (Edit Distance).
Susie bought 15 pairs of shoes last year for an avarage of 30$ per pair. She sold each pair for 1/3Susie bought 15 pairs of shoes last year for an avarage of 30$ per pair. She sold each pair for 1/3 of the avagrage price at a consignment shop. How much money did she make at the consigment shop?
Calculate average price:
1/3 the average price is $30/3 = $10
Total money made:
Pairs of Shoes * Average Price
15 * 10 = [B]$150[/B]
The auto repair shop took 2.5 hours to repair Victoria’s car. The cost of parts was $93, and the totThe auto repair shop took 2.5 hours to repair Victoria’s car. The cost of parts was $93, and the total bill was $248. What is the shops charge per hour.
Calculate Labor Cost:
Labor Cost = Total bill - Parts
Labor Cost = $248 - $93
Labor Cost = $155
Calculate labor hourly rate:
Labor Hourly Rate = Labor Cost / Number of Labor Hours
Labor Hourly Rate = 155/2.5
Labor Hourly Rate = [B]$62[/B]
The bill for the repair of a car was $294. The cost of parts was $129, and labor charge was $15 perThe bill for the repair of a car was $294. The cost of parts was $129, and labor charge was $15 per hour. How many hours did it take to repair the car? Write a sentence as your answer.
Let h be the number of hours. We have:
15h + 129 = 294
To solve this equation for h, we [URL='https://www.mathcelebrity.com/1unk.php?num=15h%2B129%3D294&pl=Solve']type it in the search engine [/URL]and we get:
h = [B]11[/B]
The construction crew has less than 7 days to complete the road repairs. Let d represent the numberThe construction crew has less than 7 days to complete the road repairs. Let d represent the number of days left to complete the road repairs.
Less than means we don't include 7:
[B]d < 7 [/B]
The domain of a relation is all even negative integers greater than -9. The range y of the relationThe domain of a relation is all even negative integers greater than -9. The range y of the relation is the set formed by adding 4 to the numbers in the domain. Write the relation as a table of values and as an equation.
The domain is even negative integers greater than -9:
{-8, -6, -4, -2}
Add 4 to each x for the range:
{-8 + 4 = -4, -6 + 4 = -2. -4 + 4 = 0, -2 + 4 = 2}
For ordered pairs, we have:
(-8, -4)
(-6, -2)
(-4, 0)
(-2, 2)
The equation can be written:
y = x + 4 on the domain (x | x is an even number where -8 <= x <= -2)
The ordered pairs (8,12), (16, 24), (x, 21), (26, y ) represent a proportional relationship. Find thThe ordered pairs (8,12), (16, 24), (x, 21), (26, y ) represent a proportional relationship. Find the value of x and the value of y.
12/8 = 1.5
24/16 = 1.5
So we have our proportion; y/x = 1.5 or 3/2
[U]For (x, 21), we have:[/U]
21/x = 3/2
[URL='https://www.mathcelebrity.com/prop.php?num1=21&num2=3&den1=x&den2=2&propsign=%3D&pl=Calculate+missing+proportion+value']Type this proportion into our search engine[/URL] and we get:
x = [B]14[/B]
For (26, y), we have:
y/26 = 3/2
[URL='https://www.mathcelebrity.com/prop.php?num1=y&num2=3&den1=26&den2=2&propsign=%3D&pl=Calculate+missing+proportion+value']Type this proportion into our search engine[/URL] and we get;
y = [B]39[/B]
The sales price s of a pair of shoes plus 4% sales taxThe sales price s of a pair of shoes plus 4% sales tax
Total price is s(1 + 0.04) or [B]s(1.04)[/B]
There are 50 pairs of pants. One-half of the pants are black. One-fifth of the pants are tan. How maThere are 50 pairs of pants. One-half of the pants are black. One-fifth of the pants are tan. How many pairs of pants are not black or tan.
First, determine what fraction of pants are black and tan:
1/2 + 1/5
Using our [URL='https://www.mathcelebrity.com/fraction.php?frac1=1%2F2&frac2=1%2F5&pl=Add']fraction addition calculator[/URL], we get 7/10.
So the rest of the pants are 1 - 7/10.
1 can be written as 10/10.
So we have 10/10 - 7/10 = 3/10
3/10 * 50 = 150/10 = [B]15[/B]
Tyrone re sells 3 pairs of Yeezys and a pair of Nikes for 250$. Nucci re sells a pair of Yeezys andTyrone re sells 3 pairs of Yeezys and a pair of Nikes for 250$. Nucci re sells a pair of Yeezys and Nikes for 150$ How much does a pair of Yeezys cost?
Let y be the cost of Yeezy's and n be the cost of Nike's. We're given two equations:
[LIST=1]
[*]3y + n = 250
[*]y + n = 150
[/LIST]
We have a system of equations, and we can solve it using one of three ways:
[LIST]
[*][URL='https://www.mathcelebrity.com/simultaneous-equations.php?term1=3y+%2B+n+%3D+250&term2=y+%2B+n+%3D+150&pl=Substitution']Substitution Method[/URL]
[*][URL='https://www.mathcelebrity.com/simultaneous-equations.php?term1=3y+%2B+n+%3D+250&term2=y+%2B+n+%3D+150&pl=Elimination']Elimination Method[/URL]
[*][URL='https://www.mathcelebrity.com/simultaneous-equations.php?term1=3y+%2B+n+%3D+250&term2=y+%2B+n+%3D+150&pl=Cramers+Method']Cramer's Rule[/URL]
[/LIST]
No matter what method we choose, we get:
[LIST]
[*][B]n = 100[/B]
[*][B]y = 50[/B]
[/LIST]
Unit ConversionsFree Unit Conversions Calculator - Converts between a unit, pair, half-dozen, dozen, bakers dozen, and gross.
What is the X coordinate of the point (6, 19)What is the X coordinate of the point (6, 19)
Using our [URL='https://www.mathcelebrity.com/ordered-pair.php?num=6%2C19&pl=Show+Detail']ordered pair calculator[/URL], we see that the x coordinate is [B]6[/B]
What pair of consecutive integers gives the following: 7 times the smaller is less than 6 times theWhat pair of consecutive integers gives the following: 7 times the smaller is less than 6 times the larger?
Let x and y be consecutive integers, where y = x + 1
We have 7x < 6y as our inequality.
Substituting x, y = x + 1, we have:
7x < 6(x + 1)
7x < 6x + 6
Subtracting x from each side, we have:
x < 6, so y = 6 + 1 = 7
(x, y) = (6, 7)
What pair of factors of -28 has a sum of -3What pair of factors of -28 has a sum of -3?
We type in [I]factor -28[/I] into our search engine.
Scrolling down the list of factor sums, we see:
-7 + 4 = -3
So our answer is [B](-7, 4)[/B]
Which of the following involves making pairwise comparisons? a. Comparing the standard deviation ofWhich of the following involves making pairwise comparisons?
a. Comparing the standard deviation of GRE grades between two states
b. Comparing the variance of the amount of soda consumed by boys and girls in a high school
c. Comparing the mean weight between children in grades 2, 3, 4 and 5
d. Comparing the number of restaurants in New York and Boston
[B]c. Comparing the mean weight between children in grades 2, 3, 4 and 5[/B]
Pairwise comparison generally refers to any process of comparing entities in pairs to judge which of each entity is preferred, or has a greater amount of some quantitative property
You are comparing the costs of producing shoes at two different manufacturers. Company 1 charges $5You are comparing the costs of producing shoes at two different manufacturers. Company 1 charges $5 per pair of shoes plus a $650 flat fee. Company 2 charges $4 per pair of shoes plus a $700 flat fee. How many pairs of shoes are produced when the total costs for both companies are equal?
Let s be the number of shoes. We have two equations:
(1) C = 5s + 650
(2) C = 4s + 700
Set the costs equal to each other
5s + 650 = 4s + 700
Subtract 4s from each side
s + 650 = 700
Subtract 650 from each side
[B]s =50[/B]
You have $80. Jeans cost $29 and shirts cost $12. Mom told you to buy one pair of jeans and use theYou have $80. Jeans cost $29 and shirts cost $12. Mom told you to buy one pair of jeans and use the rest of the money to buy shirts. Find the inequality.
Let j be the number of jeans. Let s be the number of shirts. We are given:
[LIST]
[*]Mom told you to buy one pair of jeans. So we have $80 to start with - $29 for 1 pair of jeans = $51 left over
[/LIST]
Now, since shirts cost $12 each, and our total number of shirts we can buy is s, our inequality is [B]12s <= 51[/B].
We want to find the s that makes this inequality true.
[URL='https://www.mathcelebrity.com/interval-notation-calculator.php?num=12s%3C%3D51&pl=Show+Interval+Notation']Run this statement through our calculator[/URL], and we get s <= 4.25. But, we need s to be an integer, so we have s <= 4.
You have saved $50 over the last two weeks and decide to treat yourself by buying some new clothes.You have saved $50 over the last two weeks and decide to treat yourself by buying some new clothes. You go to the store and find two shirts and three pairs of jeans you like. The two shirts are buy-one-get-one half off, at $22.35 each. The three pairs of jeans are buy-two-get-one-free, at $23.70.
Tax Rate for Harmonized Sales Tax is 13%
a. What would be the total for the two shirts (don’t forget to include taxes)?
b. What would be the total for the three pairs of jeans (don’t forget to include taxes)?
c. Which would you buy and why?
a. Half of 22.35 is 11.18
So two shirts cost:
22.35 + 11.18 = 33.53
Cost with Tax of 13% is:
33.53 * 1.13 = [B]37.89
[/B]
b. Three pairs of jeans are calculated by cost of 1 pair times 2 jeans and you get the third one free:
23.70 * 2 = 47.40
Cost with Tax of 13% is:
47.40 * 1.13 = [B]53.56
[/B]
c. Calculate unit cost, which is cost per item
Unit cost of Shirts = 37.89 / 2 = [B]18.95[/B]
Unit cost of Jeans = 53.56 / 3 = [B]17.85
Buy the jeans since they have a lower unit cost[/B]
You spend $91 shopping for new clothes. You spend $24 for a pair of jeans and 35$ for a pair of shoeYou spend $91 shopping for new clothes. You spend $24 for a pair of jeans and 35$ for a pair of shoes. You also buy 4 shirts that cost d dollars. How much is each shirt?
Subtract the cost of the jeans and shoes to get the cost of the shirts:
Cost of shirts = Shopping Spend - Cost of Jeans - Cost of Shoes
Cost of shirts = $91 - $24 - $35
Cost of shirts = $32
We're given the cost of each shirt is s, and we bought 4 shirts. Therefore, we have:
4s = 32
[URL='https://www.mathcelebrity.com/1unk.php?num=4s%3D32&pl=Solve']Type this equation into the search engine[/URL], and we get the cost of each shirt s = [B]$8[/B]