SOLUTION: If I have seven more quarters than nickels, and I have $4.75, how much of each coin do I have?

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Question 1057626: If I have seven more quarters than nickels, and I have $4.75, how much of each coin do I have?
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
q = n+7 (since you have 7 more quarters than nickels, to make them equal you need to add 7 to the nickels)
:
0.25q+0.05n = 4.75 substitute for q
0.25(n+7)+0.05n = 4.75
0.25n+1.75+0.05n = 4.75
0.30n = 3
n = 10
and 10+7 = 17 quarters
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Check:
10*0.05+17*0.25 = 4.75 Correct
:
John