document.write( "Question 1005405: Rita has a collection of 82 dimes and nickels worth $6.65. How many nickels does she have?
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Algebra.Com's Answer #621693 by macston(5194)\"\" \"About 
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\n" ); document.write( "N=number of nickels; D=number of dimes
\n" ); document.write( "N+D=82
\n" ); document.write( "D=82-N
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\n" ); document.write( "$0.05N+$0.10D=$6.65
\n" ); document.write( "$0.05N+$0.10(82-N)=$6.65
\n" ); document.write( "$0.05N+$8.20-$0.10N=$6.65
\n" ); document.write( "-$0.05N=-$1.55
\n" ); document.write( "N=31
\n" ); document.write( "ANSWER: She had 31 nickels.
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