Question

your weekly base salary is $150. You earn $20 for each cell phone that you sell. Write and solve an inequality that represents the number of cell phones you must sell to make at least $630 a week.

Answer 1

Explanation:

Let the number of cell phones be represented by X;

Price per cell phone = $20

$150 is a constant

Minimum goal per week = $630

The inequality will be;

150 + 20X
`\geq` 630

20X
`\geq` 630 -150

20X
`\geq` 480

Divide both sides by 20 to solve for X;

X
`\geq` 480/20

X
`\geq` 24

Therefore, you must sell at least 24 cell phones.