document.write( "Question 1061226: When Jai emptied her piggy bank, there were nickels, dimes, and quarters. There were 2 times as many dimes as nickels, and 10 more quarters than nickels. If the total amount of money was 7.50, how many coins did she have? \n" ); document.write( "
Algebra.Com's Answer #676090 by josgarithmetic(39618)\"\" \"About 
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VARIABLES
\n" ); document.write( "n nickels
\n" ); document.write( "d dimes
\n" ); document.write( "q quarters\r
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\n" ); document.write( "\n" ); document.write( "EQUATIONS FROM DESCRIPTION
\n" ); document.write( "\"system%28d%2Fn=2%2Cq-n=10%2C0.05n%2B0.1d%2B0.25q=7.5%29\"\r
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\n" ); document.write( "\n" ); document.write( "SIMPLIFY OR IMPROVE THE SYSTEM
\n" ); document.write( "\"system%28d=2n%2Cn-q=-10%2Cn%2B2d%2B5q=150%29\"
\n" ); document.write( "Actual form of each equation may be chosen differently, but system must still be equivalent.\r
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\n" ); document.write( "\n" ); document.write( "SUGGESTION:
\n" ); document.write( "substitute for d in the last equation of that simplified system, and solve the resulting system in n and q.
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