SOLUTION: 30 coins, all dimes and nickles, are worth $2.60. How many nickels are there?

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Question 1015130: 30 coins, all dimes and nickles, are worth $2.60. How many nickels are there?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
30 coins, all dimes and nickles, are worth $2.60. How many nickels are there?
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n + d = 30
5n + 10d = 260