elielson1497

05.11.2020 • 

Mathematics

A businessman is paid $12 per hour and $6 for each sale he makes. He wants to earn more than $250 in a 12-hour work period Part A: Write an inequality that represents the number of sales, x, the businessman must make in a 12-hour period to earn more than $250.
Part B: What is the least number of sales he must make to reach his sales goal? Show your work or explain your answer.

25 points

Ответ:

edith47

19.05.2021

Mathematics

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0 = x² + 10x + 16

Subtract x^2+10x+16 from each side
0−(x^2+10x+16) = x^2+10x+16−(x^2+10x+16)
−x^2−10x−16=0

Factor left side
(−x−2)(x+8)=0

Set all factors to equal 0
−x−2=0 or x+8=0

The solutions are x = -2 and x = -8

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