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.
Responses
A 100 - 3s ≤ 160; s ≤ 20100 - 3s ≤ 160; s ≤ 20
B 100 + 3s ≥ 160; s ≥ 18100 + 3s ≥ 160; s ≥ 18
C 100 - 3s ≤ 160; s ≤ 18100 - 3s ≤ 160; s ≤ 18
D 100 + 3s ≥ 160; s ≥ 20
B 100 + 3s ≥ 160; s ≥ 18
Explanation: In this case, we want the total pay to be at least $160. This means the sum of the fixed payment of $100 and the variable payment of $3 per sale (3s) is greater than or equal to $160. Therefore, the correct inequality is 100 + 3s ≥ 160. Solving for s, we get s ≥ 18. This means you need to make at least 18 sales to meet your minimum pay goal.