As a salesperson, you are paid $100 per week plus $3 per sale. This week you want your pay to be at least $160. Write and solve an inequality for the number of sales you need to make.

Question

A. 100+ 3s ≤ 160; s ≤ 18
B. 100 + 3s ≥ 160; s ≥ 20
C. 100+ 3s ≥ 160; s ≥ 18
D. 100 - 3s ≤ 160; s ≤ 20

Answer 1

Using the information given, we can write the inequality: 100 + 3s ≥ 160. To solve this inequality, we can subtract 100 from both sides to isolate the variable: 3s ≥ 60. Then, we divide both sides by 3 to solve for s: s ≥ 20. Therefore, the correct answer is option B: 100 + 3s ≥ 160; s ≥ 20.