document.write( "Question 957211: a purse contains 100 coins that are nicks and dimes. The total value is $7. How many nickels and dimes are there? \n" ); document.write( "
Algebra.Com's Answer #584875 by checkley77(12844)\"\" \"About 
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N+D=100 OR N=100-D
\n" ); document.write( ".05N+.10D=7.00
\n" ); document.write( ".05(100-D)+.10D=7.00
\n" ); document.write( "5-.05D+.10D=7.00
\n" ); document.write( ".05D=7-5
\n" ); document.write( ".05D=2
\n" ); document.write( "D=2/.05
\n" ); document.write( "D=40 NO. OF DIMES.
\n" ); document.write( "N+40=100
\n" ); document.write( "N=100-40
\n" ); document.write( "N=60 NO. OF NICKELS.
\n" ); document.write( "PROOF:
\n" ); document.write( ".05*60+.10*40*=7.00
\n" ); document.write( "3.00+4.00=7.00
\n" ); document.write( "7.00=7.00
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