SOLUTION: Bruce has 5.50 in dimes and quarters. He has 8 more quarters than dimes. How many quarters does Bruce have?

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Question 178019: Bruce has 5.50 in dimes and quarters. He has 8 more quarters than dimes. How many quarters does Bruce have?
Answer by Alan3354(69443) About Me  (Show Source):
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Bruce has 5.50 in dimes and quarters. He has 8 more quarters than dimes. How many quarters does Bruce have?
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Q = D+8
25Q + 10D = 550
Sub Q into the 2nd eqn
25(D+8) + 10D = 550
25D+200 + 10D = 550
35D = 350
D = 10 dimes
Q = 18 quarters