SOLUTION: Joe has a pile of dimes and nickels. The total value of the pile is 3.2 dollars, and there are 42 coins altogether. How many nickels are in the pile?

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Question 932257: Joe has a pile of dimes and nickels. The total value of the pile is 3.2 dollars, and there are 42 coins altogether. How many nickels are in the pile?


Answer by Alan3354(69443) About Me  (Show Source):
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Joe has a pile of dimes and nickels. The total value of the pile is 3.2 dollars, and there are 42 coins altogether. How many nickels are in the pile?
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n + d = 42
5n + 10d = 320