Question

A consultant needs to make at least $800 this week. She earns $80 for each new written piece and $40 for each review. Which of the following inequalities represents the possible combinations of reviews and new written pieces that she must complete?

a: 80x+40y>800
b:80x+40y≥800
c:80x+40y≤800
d:80x+40y<800

Answer 1

Answer: that is correct

Step-by-step explanation: I just submitted my test and it was correct

Answer 2

The correct option is b.

Explanation:

Let the number of reviews be y and the number of new written pieces be x.

It is given that the consultant earns $80 for each new written piece and $40 for each review. The total earning is defined as

`80x+40y`

She make make at least $800 this week. It means she want make $800 and more than $800 this week. So the sign of inequality is ≥ instead of >.

`80x+40y\geq 800`

Therefore option b is correct.