Question

If 12 roses cost 30.4 how much will 18 roses cost?

Answer 1

45.6

Explanation:

We can write a proportion to solve

12 roses 18 roses

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

30.4 x

Using cross products

12x = 30.4 * 18

12x=547.2

Divide each side by 12

12x/12 = 547.2/12

x = 45.6