Joanie wants to mail a package that requires ​$1.74 in postage. If she has only 5​-cent and 9​-cent ​stamps, what is the smallest number of stamps she could use that would total exactly ​$1.74​?

Answer 1

(19)(0.09) = 1.71

(18)(0.09) = 1.62

(17)(0.09) = 1.53

(16)(0.09) = 1.44

16 nine cent stamps and 6 five cent stamps