Question

A window washer earns $4 per window. Which equation represents the relationship between his total earnings and the number of windows he washes?

A.total earnings = number of windows washed + 4
B.number of windows washed = total earnings + 4
C.4 = number of windows washed × total earnings
D.total earnings = 4 × number of windows washed

Answer 1

D

Explanation:

He gets 4$ per window, so if he washes 3 windows, he gets 4 + 4 + 4 dollars, or 4(money per window) * 3(number of windows washed) dollars.

So, total earnings = 4 × number of windows washed