Question

A consultant needs to make at least $720 this week. She earns $120 for each new written piece and 560 for each review. Which of the following inequalities represents the possible combinations of reviews and new written pieces that she must complete?

Answer 1

Answer: B

Explanation:

Since she can have an unknown number of written pieces and reviews, we substitute it with a variable. Once you add how much she makes, it will need to be at least $720 which is why the sign you use is greater than or equal to $720.

Answer 2

`120x+60y\geq 720`

Explanation:

A consultant needs to make at least $720 this week. She earns $120 for each new written piece and $60 for each review.

Let the written pieces be represented by x.

Let the reviews be represented by y.

Given is that she should make at least $720. This means she should make a minimum of $720 or more than that, but not less than $720.

So, the equation/inequality that forms is :

`120x+60y\geq 720`

Hence, the possible combinations of reviews and new written pieces that she must complete :
`120x+60y\geq 720`