Paul owes Paula 35 cents and has a pocket full of 55-cent coins, 10-cent coins, and 25-cent coins that he can use to pay her. Wh
2 answers:
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By the fundamental theorem of algebra, we can write
Expanding the right hand side, we get
We want to be an integer, which means
must also be integers. This means
must be factors of 10. There are several possibilities:
So there are 4 possible values for : -11, -7, 7, and 11.