Christmas package

Question

On a Christmas package Audrey needs to use only 40-cent stamps and 16-cent stamps, how many of each type of stamp must she use to mail a package costing $5.76 in postage?

Answer 1

5.75 / 0.4 = 14.4 so only 14 40 cent stamps cam be used

 

.40(14) = 5.60

 

Add one .16 stamp

 

Forty-one forty cents stamps and 1 sixteen cent stamp are needed.