SOLUTION: Abby has 57 coins that are quarters and dimes. If the value of the coins is $7.95, find the number of dimes.

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Question 438308: Abby has 57 coins that are quarters and dimes. If the value of the coins is $7.95, find the number of dimes.
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
d+q=57
10d+25q=795
10d+10q=570
15q=225
q=15
d=42
Abby has 42 dimes and 15 quarters.