document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=984230>Question 984230</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Lamar has 46 coins, all nickels and dimes. The total value of all these coins is $3.05. How many nickels does he have? </SPAN>\n" );
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document.write( "N=number of nickels; D=number of dimes<BR>\n" );
document.write( "N+D=46<BR>\n" );
document.write( "D=46-N Use this to substitute for D below.<BR>\n" );
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document.write( "$0.05N+$0.10D=$3.05 Substitute for D from above.<BR>\n" );
document.write( "$0.05N+$0.10(46-N)=$3.05<BR>\n" );
document.write( "$0.05N+$4.60-$0.10N=$3.05<BR>\n" );
document.write( "-$0.05N=-$1.55<BR>\n" );
document.write( "31=N ANSWER: He has 31 nickels.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "CHECK:<BR>\n" );
document.write( "D=46-N=46-31=15 He has 15 dimes<BR>\n" );
document.write( ".<BR>\n" );
document.write( "$0.05N+$0.10D=$3.05<BR>\n" );
document.write( "$0.05(31)+$0.10(15)=$3.05<BR>\n" );
document.write( "$1.55+$1.50=$3.05<BR>\n" );
document.write( "$3.05=$3.05<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );