Every 100 seeds of corn he plants, he harvests 84 ears of corn. If he wants to harvest 7200 ears of corn, how many seeds must he plant?
Set up a proportion seeds to ears:
100/84 = x/7200 where x is the number of seeds needed for 7200 ears of corn.
Using our proportion calculator, we get:
x =...
If 3 times a number added to 2 is divided by the number plus 4 the result is 4/3
Take this in pieces, where "a number" means an arbitrary variable, let's call it "x".
3 times a number --> 3x
3 times a number added to 2 --> 3x + 2
The number plus 4 --> x + 4
is divided by --> (3x + 2)/(x + 4)...
Set up a proportion, with meters to seconds:
50 meters/21.81 seconds = x meters / 1 second
50/21.81 = x/1
Using our proportion calculator, we have:
x = 2.293 meters per second
If it takes 6.6 pounds of seed to plant one acre of grass, how many acres can be planted with 9.24 pounds of seed.
Set up a proportion, seed to acre:
6.6/1 = 9.24/x
Using our proportion calculator, we get x = 1.4
Clara can bake 17 cookies with each scoop of flour. With two scoops of flour, how many cookies can Clara bake?
Set up a proportion where x is the number of cookies per 2 scoops of flour
17 cookies/1 scoop = x cookies/2 scoops
Running this in the search engine, we get:
x = 34 cookies
jamie needs 3 cups of flour and 4 cups of sugar how many cups of sugar will she need if she uses 9 cups of flour?
Set up a proportion of flour/sugar:
3/4 = 9/x
Cross multiply or enter that into the search engine
3x = 36
x = 12
8 sweets divided by 4 pupils = 2 sweets per pupil.
We can also write this as a proportion:
8 sweets x sweets
---------- = ------------
4 pupils 1 pupil
Express this as 8/4 = x/1.
Enter that into the search engine
x = 2
Nate jars 2 liters of jam everyday. How many days did Nate spend making jam if he jarred 8 liters of jam?
2 liters per 1 day and 8 liters per x days.
Set up a proportion:
2/1 = 8/x
Cross multiply:
2x = 8
Divide each side by 2
x = 4 days.
4 teaspons of vegetable oil and 6 teaspoons of vinegar. 20 teaspoons of vegetable oil to how many teaspoons of vinegar?
Set up a proportion where x is the number of teaspoons of vinegar in the second scenario:
4/6 = 20/x
Plug that expression into the search engine to get
x = 30
There are 4064 calories in 8 pints of strawberry ice cream. How many calories are there in each pint of strawberry ice cream?
Set up a proportion using x as the number of calories in 1 pint of ice cream.
4064/8 = x/1
Using our proportion calculator, we get:
x = 508
There are 76 milligrams of cholesterol in a 3.2 ounce serving of lobster. How much cholesterol is in a 6 ounce serving?
Let x equal the amount of cholesterol in milligrams for a 6 ounce service. Set up a proportion:
76/3.2 = x/6
Using our proportion calculator by plugging that expression...