SOLUTION: Callum has quarters and dimes adding up to $3.15. If the number of quarters is 3 more than twice the number of dimes, then how many of each does he have?

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Question 1124669: Callum has quarters and dimes adding up to $3.15. If the number of quarters is 3 more than twice the number of dimes, then how many of each does he have?
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!
Let q=number of quarters and
d=number of dimes
(1) 10d + 25q = 315 (in cents)
(2) q = 3 + 2d
These two equations can be solved for +highlight%28d=4+%29, highlight%28q=11%29

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Check: 10*4 + 25*11 = 40 + 275 = 315.