Question

Brett has a $30 online gift card. He plans to buy as many books as he can. The cost of each book is $4. There is also a single shipping charge of $2. Write an inequality to show how to find the maximum number of books can he afford without spending more than his gift card.

Answer 1

Let x equal the number of books:
30 ≥ 4x+2

You don’t want to spend more than $30, so you want to spend as close to $30 as possible, or equal it.