SOLUTION: Gordon has 3.40 in change made up of dimes and quarters if Gordon has three times as many quarters as dimes how many quarters and dimes does he have

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Question 736131:
Gordon has 3.40 in change made up of dimes and quarters if Gordon has three times as many quarters as dimes how many quarters and dimes does he have
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
.25Q+.10D=3.40
Q=3D
.25*3D+.10D=3.40
.75D+.10D=3.40
.85D=3.40
D=3.40/.85
D=4 NUMBER OF DIMES.
Q=3*4=12 NUMBER OF QUARTERS.
PROOF:
.25*12+.10*4=3.40
3.00+.40
3.40=3.40