document.write( "Question 175615: A clerk was asked to change a $10 bill. She returned 9 more dimes than nickels and twenty-one more quarters than dimes. How many coins of each did she return? \n" ); document.write( "
Algebra.Com's Answer #130723 by stanbon(75887)\"\" \"About 
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A clerk was asked to change a $10 bill. She returned 9 more dimes than nickels and twenty-one more quarters than dimes. How many coins of each did she return?
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\n" ); document.write( "Quantity Eq.: d = n+9
\n" ); document.write( "Quantity Eq.: q = d+21
\n" ); document.write( "Value Equation: 5n + 10d + 25q = 1000
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\n" ); document.write( "Rearrange:
\n" ); document.write( "d = n+9
\n" ); document.write( "q = d+21 = n+9 + 21 = n+30\r
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\n" ); document.write( "Substitute to get:
\n" ); document.write( "5n + 10(n+9) + 25(n+30) = 1000
\n" ); document.write( "40n + 840 = 1000
\n" ); document.write( "40n = 160
\n" ); document.write( "n = 4 (# of nickels)
\n" ); document.write( "d = 4+9 = 13 (# of dimes)
\n" ); document.write( "q = 4 + 30 = 34 (# of quarters)\r
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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