Homework Help: Math

Posted by Anonymous on Wednesday, January 16, 2013 at 8:22pm.

The Jaspers collect nickels, dimes, and quarters in a jar. When they count the change in the jar, there are twice as many nickels as there are quarters. If there is $15.30 in dimes and $74.80 in all, how many quarters are there. Please include an equation and steps.

Math - PsyDAG, Thursday, January 17, 2013 at 7:02pm
N = 2Q

74.80 - 15.30 = 59.50

.05N + .25Q = .05(2Q) + .25Q = 59.50

Solve for Q.

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