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Marcus earns $40 per day plus $7 for every sale he makes. On Friday, he wants to earn at least $75. Which best describes the number of sales he needs to make to reach his goal? *


A. At least 5 sales
B. At most 5 sales
C. At least 6 sales
D. At most 6 sales

Sagot :

Rembaidn

Answer:

A. At least 5 sales

Step-by-step explanation:

First off, we can get rid of two of the answers, reason being is that we need the equation to be greater then or equal to a number, which means that we don't need an "at most" answer.

This leaves us with two options; A. and C.

Then we solve the inequality; 40 + 7s [tex]\geq[/tex] 75.

40 + 7s [tex]\geq[/tex] 75

subtract 40 from each side

7s [tex]\geq[/tex] 35

divide each side by 7.

s [tex]\geq[/tex] 5

This means that he has to make at least 5 sales in order to reach his goal. Which is A.
A. At least 5 because if he sells 5 that will be 35 dollars extra 35+40 =75
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