SOLUTION: Kelly has a collection of nickels, dimes and quarters with a total value of $4.70. There are 8 more dimes than nickels and 2 times more quarters than nickels, how many of each coin
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Question 900503: Kelly has a collection of nickels, dimes and quarters with a total value of $4.70. There are 8 more dimes than nickels and 2 times more quarters than nickels, how many of each coin does she have? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! d=n+8,
2n=q
5*n+10*d+25*q=470
5*n+10*(n+8)+25*2n=470
5n+10n+80+50n=470
65n=390
n=6
d=14
q=12
check
5*n+10*(n+8)+25*2n=470
5*6+10*14+25*12=470
30+140+300=470
ok
