Question

Mrs. McIntyre needs to buy pencils and erasers for her math class. The store is selling a box of pencils for $2 and a box of erasers for $1. She needs to buy four times as many pencils as erasers. If she can only spend $18, how many boxes of each will she buy?

Answer 1

8 boxes of pencils and 2 boxes of erasers

Explanation:

2 times 4 equals 8, which is the part where she needs to buy 4 times as many pencils as erasers.

8 times 2 is 16 and 1 times 2 is 2 add both 16 and 2 together and you get 18 so she spends all $18