SOLUTION: There are dimes and quarters in a box. There are 28 more quarters than dimes. There is $23.45 in total. How many dimes and quarters are there ?

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Question 1084834: There are dimes and quarters in a box. There are 28 more quarters than dimes. There is $23.45 in total. How many dimes and quarters are there ?
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
q = d+28
0.25q+0.10d = 23.45
0.25(d+28)+0.10d = 23.45
0.25d+7+0.10d = 23.45
0.35d = 16.45
d = 47
and
q = d+28 = 47+28 = 75
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Check:
47(0.10)+75(0.25) = 23.45 Correct