Question

A roll of 40 quarters weighs 8 ounces. Which proportion can be used to find the weight in ounces, w, of 200 quarters?

A. 40/8 = 200/w
B. 40/w = 8/200
C. 40/200 = w/8
D. 40/8+w = w/200

Answer 1

It's d 40/8 +W = W/200

Answer 2

The answer is A. 40/8=200/w

Explanation:

This works because the corresponding proportions are in the same place in each fraction. 40 is the number of quarters and it is the numerator. 200 is also the number of quarters and is the numerator. The same goes for 8 and w being the denominators.

If you were to finish solving the problem, you'd get w=40.