Question

wyatt earns 21$ for painting fences for 3 hours, if wyatt charges at the same rate how many hours will it take him to earn 28?

Answer 1

4 hours

Explanation:

`(28)/(21) :(y)/(3)`

21 · y = 3 · 28

21y = 84

21y ÷ 21 = 84 ÷ 21

y = 4