Question

The grocery store is

selling 3 boxes of mac
and cheese for $3.65.
How much would 8
boxes cost? What
about 15 boxes?

Answer 1

8 boxes are $9.76 and 15 boxes are $18.30

Explanation:

Find the unit rate by dividing 3.65/3 ≈ 1.22

Multiply 1.22 by 8 which is 9.76

Multiply 1.22 by 15 which is 18.30

Answer 2

Answer: 8 boxes is $9.67

15 boxes is $18.30

Explanation:

find unit rate by dividing 3.65/3 = 1.22

substitute 1.22*8= 9.67

1.22*15= 18.30