Question

Mr. Hall has $230 to spend on supplies for his classroom. He will buy a bookshelf and some books. The bookshelf costs $90. He will buy books that cost $5 each.

Create an inequality to model this problem then solve the inequality. What does your answer mean?

Make sure to show or explain how you got your answer.

Answer 1

He can buy 28 books or less.

Explanation:

ox will represent the number of books he can buy. He can only use $230 or less. I am going to use <, but It's supposed to be less than or equal, not less than, so make sure to put a less-than sign with a line under it.

90+5x<230 Subtract 90.

5x<140 Divide by 5.

x<28 This means that he can buy 28 or fewer/less books.