Question

The number of quarters required to play an arcade game varies directly with the number of levels played. The game requires 9 quarters to play 3 levels.

How many quarters are required to play 15 levels?

Answer 1

45 quarters

Explanation:

1. Think of this as the ration equation 9/3=x/15 where x is the number of quarters to play 15 levels

2. To solve the ratio, you need to cross multiply, and then divide

3. Multiply 9 times 15 (135)

4. Divide that number by 3 (45), and that's your answer!