Question

Five boxes of crakers cost 9 at the rate how much do 20 boxes cost

Answer 1

36 dollars

Explanation:

We can use ratios to solve

5 boxes 20 boxes

------------------ = ---------------

9 dollars x dollars

Using cross products

5x = 20*9

Divide each side by 5

5x/5 = 90*9/5

x = 36