answersLogoWhite

0

The X.X1 at the end of the number implies that there could be 1, 11, 21, 31, etc. pennies. Now, we could go through and test the instances.

.01 means that there is 1 penny. Therefore, there are 2 dimes to make .31, which does not work.

.11 means that there are 11 pennies. Therefore, 22 dimes are required, which make $2.31. This works, so there are 22 dimes.

User Avatar

Wiki User

12y ago

What else can I help you with?