Question

As a salesperson you get $53/day and $3.75/ each sal you make. If you want to make at least $128 in one day, how many sales would you need to make?

a 10
b 15
c 20
d 25

Answer 1

c 20

Explanation:

You make 53 a day plus 3.75 per sale

Income = 53+ 3.75 s

You want to make at least 128

128 ≤ 53+ 3.75 s

Subtract 53 from each side

128 -53 ≤ 53-53 +3.75s

75≤ 3.75s

Divide by 3.75 on each side

75/3.75≤ 3.75s/3.75

20 ≤ s

You must make at least 20 sales