SOLUTION: A parking meter contains quarters and dimes worth $4.25. There are 26 coins in all, find how many of each there are. Quarters? Dimes?

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Question 902592: A parking meter contains quarters and dimes worth $4.25. There are 26 coins in all, find how many of each there are.
Quarters? Dimes?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
d+q=26,
10*d+25*q=425
d=26-q
10*(26-q)+25*q=425
260-10q+25*q=425
15*q=165
q=11
d=26-q
d=15 at $.10 and q=11 at $.25
check
15+11=26
10*d+25*q=425
10*15+25*11=425
150+275=425
425=425
ok