Question

Please help me soon. <3

David can earn 400 dollars in 10 hours of inflating balloons for kids. He wants to know how much he can earn if he spends 20 hours doing the same thing.
Select all the equations from the below answer choices which can be used to find the answer.
A - 400/10 = x/20
B - 400/x = 10/20
C - 400/10 = x/200
D - 400/100 = x/20

Answer 1

A

Explanation:

All we have to do here is write a proportion.

So this would be

400/10 and x/20

400 and x correspond because that is the amount they are making

10 and 20 are the number of hours

Therefore 400/10=x/20