Given the ratio 7 : 5:
Calculate the
expected number of items from a population of 120
Ratio Definition
7 : 5 means that for every
Therefore, our total group is 7 + 5 = 12
Calculate Expected Number of Item A:
| Expected Number of Item A = | 7 x 120 |
| 12 |
| Expected Number of Item A = | 840 |
| 12 |
| Expected Number of Item A = | 70 |
| 1 |
Expected Number of Item A = 70
Calculate Expected Number of Item B:
| Expected Number of Item B = | 5 x 120 |
| 12 |
| Expected Number of Item B = | 600 |
| 12 |
| Expected Number of Item B = | 50 |
| 1 |
Expected Number of Item B = 50
Final Answer
Expected Number of Item A = 70
Expected Number of Item B = 50
Expected Number of Item B = 50
Common Core State Standards In This Lesson
6.RP.A.1, 6.RP.A.2, 6.RP.A.3, 6.RP.A.3.D
How does the Ratios Calculator work?
Free Ratios Calculator - * Simplifies a ratio of a:b
* Given a ratio in the form a:b or a to b, and a total population amount, this calculator will determine the expected value of A and B from the ratio.
This calculator has 3 inputs.
* Given a ratio in the form a:b or a to b, and a total population amount, this calculator will determine the expected value of A and B from the ratio.
This calculator has 3 inputs.
What 1 formula is used for the Ratios Calculator?
a:b = a/b
What 6 concepts are covered in the Ratios Calculator?
- denominator
- The bottom portion of a fraction. For a/b, b is the denominator
- fraction
- how many parts of a certain size exist
a/b where a is the numerator and b is the denominator - greatest common factor
- largest positive integer dividing a set of integers
- numerator
- the number above the line in a common fraction
- ratio
- indicates how many times one number contains another
- ratios
