document.write( "Question 668137: A collection of 32 dimes and nickels are worth $2.50. How many nickels are there? \n" ); document.write( "
Algebra.Com's Answer #415371 by Adrianne15(25)\"\" \"About 
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Let x represent the number of dimes, and 32-x represent the number of nickels. Remember the values of each coin.\r
\n" ); document.write( "\n" ); document.write( "\"0.1%28x%29%2B0.05%2832-x%29=2.5\" Multiply all terms by 100 to get rid of decimals.
\n" ); document.write( "\"10x%2B160-5x=250\"
\n" ); document.write( "\"5x=90\"
\n" ); document.write( "\"x=18\"\r
\n" ); document.write( "\n" ); document.write( "Now substitute this \"x\" back into your expressions for number of dimes/nickels.\r
\n" ); document.write( "\n" ); document.write( "Dimes = x
\n" ); document.write( "=18\r
\n" ); document.write( "\n" ); document.write( "Nickels = 32-x
\n" ); document.write( "=32-18
\n" ); document.write( "=14\r
\n" ); document.write( "\n" ); document.write( "Therefore, there are 18 dimes and 14 nickels.
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