Joanie wants to mail a package that requires $1.04 in postage. if she has only 5-cent and 6-cent stamps, what is the smallest number of stamps she could use that would total exactly $1.04?

We have been given that Joanie wants to mail a package that requires $1.04 in postage.

She has only 5-cent and 6-cent stamps.

Let us assume that she uses x 5-cent stamps and y 6-cent stamps. Therefore, we can set up an equation:

We need to figure out integer values of x and y such that their sum, that is, (x+y) is minimum.

In order to do so, we would be requiring at least four 5-cent stamps.

Therefore, number of 6-cent stamps would be:

Therefore, the smallest number of stamps would be 14+4 = 18 stamps

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