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Mathematics 9 Online
OpenStudy (anonymous):

A bag of nickels and dimes contained 83 coins. If the value of the coinswas $7.30, how many nickels are there? (Hint: If you call the number of nick»els x, then the value of the nickels is 5x. If you call the number of dimes y,then the value of the dimes is 10y.)

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