SOLUTION: Raul has 25 coins, all quarters and dimes. If he has $4.90 in all, how many quarters and how many dimes does Raul have?

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Question 1007008: Raul has 25 coins, all quarters and dimes. If he has $4.90 in all, how many quarters and how many dimes does Raul have?
Answer by ikleyn(52800) About Me  (Show Source):
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Raul has 25 coins, all quarters and dimes. If he has $4.90 in all, how many quarters and how many dimes does Raul have?
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q = %28490+-+25%2A10%29%2F15 = 16.

n = 25 - 16 = 9.

For details see the lesson  Solving coin problems without using equations  in this site.