Question

You need at least $715 to go on a trip to Arizona. You have already saved $350. You decide to save an additional $85 per week. Which inequality shows the number of weeks, w, you need to save to be able to go on the trip? CLEAR CHECK 85w≤715+350 85w+350≤715 85w+350≥715 85w≥715+350

Answer 1

C.
`85w+350\geq 715`

Explanation:

Let w be the number of weeks.

We have been given that you decide to save an additional $85 per week, so the money saved in w weeks will be equal to 85w.

We are also told that you have already saved $350. This means that the total money saved in w weeks will be
`85w+350`.

Since you need at least $715 to go on a trip to Arizona. This means that the total money saved in w weeks should be greater than or equal to 715. We can represent this information in an equality as:

`85w+350\geq 715`

Therefore, the inequality
`85w+350\geq 715` shows the number of weeks, w, you need to save to be able to go on the trip and option C is the correct choice.

Answer 2

85w + 350 ≥ 715

This is because you initially have 350 already, so that number shouldn't be altered. W represents the weeks, and since you get 85 per week, 85w would represent the end amount after a set amount of weeks.

Add that to the initial amount of 350.

It also states that you need at least 715, so you can have more. ≤ would represent less than or equal to, making any with that the incorrect answer.

Hope this helps!