Andrew's salary is 1200 a month plus 4% commission on all his sales. What must the amount of his sales be to earn at least 1600 each month.

Question

I know the answer has to be around 10,000 but can you show me how to set up the problem to solve it?

Answer 1

0.04x = 1600

x = 1600/0.04

As you can see -- your answer is wrong.

Answer 2

1200 + .04 s ≥ 1600

.04 s ≥ 400

s ≥ 10000

Answer 3

1200 + .04 s ≥ 1600

.04 s ≥ 400

s ≥ 16
Scoot got most of it right, but 400 by .04 is 16

Answer 4

Umm Daniela are you sure about that? I’m pretty sure 400/.04 is 10,000....