if 6 apples cost $1.50, how much will 10 apples cost

Answer 1

This can be set up as a proportion.

6 apples / $1.50 = 10 apples / x

To solve this cross multiply and simplify:

6(x) = 10(1.50)

6x=15.00

Divide both sides by 6

6x/6=15.00/6

x = $2.50