Question

In a recent year a letter to Europe from the United states costs .94 cents to mail. A letter mailed within the united states costs .44 cents. Nancy mailed 5 letters for 3.70, some to Europe and some to the united states. How many letters did she send to Europe?

Answer 1

3 to Europe.
If every letter to Europe was 94 cents, it would be a total of $2.82 to mail. The remaining 88 cents was used to send letters within the United States.