Question

Problem #4 My teacher said that for every student who earned an A on the last

quiz, three students earned a B. If four students earned an A, how many earned a
B? Why? Explain.

Answer 1

12

Explanation:

We can write the following ratio

1:3 (for every student who gets an A 3 gets a b)

We then can write a new ratio

4:x

We can solve this ratio by multiplying the original ratio by 4

4:12

This means that 12 people earned an B