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Mathematics 12 Online
OpenStudy (anonymous):

The box contains 46 coins, consisting of pennies, dimes, and quarters. The number of pennies is equal to the number of dimes, and the total value is $4.09. How many of each denomination of coin does he have? I start and got stuck in this part... p(1)+d(10)+q(46-2p) = 409

OpenStudy (anonymous):

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