document.write( "Question 988547: There is a collection of nickels, dimes, and quarters with total value of $47.60. There are 28 more dimes than nickels. There are 5 times as many quarters as dimes. How many quarters are in the collection? \n" ); document.write( "
Algebra.Com's Answer #805523 by CubeyThePenguin(3113)\"\" \"About 
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n = number of nickels
\n" ); document.write( "d = number of dimes
\n" ); document.write( "q = number of quarters\r
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\n" ); document.write( "\n" ); document.write( "5n + 10d + 25q = 4760
\n" ); document.write( "d = n + 28
\n" ); document.write( "q = 5d = 5(n + 28)\r
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\n" ); document.write( "\n" ); document.write( "Write everything in terms of n.\r
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\n" ); document.write( "\n" ); document.write( "5n + 10d + 25q = 4760
\n" ); document.write( "5n + 10(n + 28) + 25(5(n+28)) = 4760
\n" ); document.write( "5n + 10n + 280 + 125n + 3500 = 4760
\n" ); document.write( "140n = 980
\n" ); document.write( "n = 7\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "There are 7 nickels, 35 dimes, and 175 quarters in the collection.
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