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August 29, 2015

Homework Help: algebra

Posted by Brittney on Monday, January 17, 2011 at 4:16pm.

Suppose that Maria has 140 coins consisting of pennies, nickels, and dimes. The number of nickels she has is 9 less than twice the number of pennies; the number of dimes she has is 19 less than three times the number of pennies. How many coins of each kind does she have?

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