SOLUTION: please help me with this problem: Romeo has 4 more quarters than dimes. if he has a total of $1.70, how many quarters and dimes does he have?

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Question 658841: please help me with this problem:
Romeo has 4 more quarters than dimes. if he has a total of $1.70, how many quarters and dimes does he have?
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
Q=D+4
.25Q+.10D=1.70
.25(D+4)+.10D=1.70
.25D+1+.10D=1.70
.35D=1.70-1
.35D=.70
R=.70/.35
D=2 NUMBER OF DIMES.
Q=2+4
Q=6 NUMBER OF QUARTERS.
PROOF:
.25*6+.10*2=1.70
1.50+.20=1.70
1.70=1.70