document.write( "Question 948607: I have $2.20 in dimes and nickles. There are 10 more dimes than nickles, how many nickles are there?
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Algebra.Com's Answer #579019 by macston(5194)![]() ![]() You can put this solution on YOUR website! N=number of nickels; D=number of dimes=N+10 \n" ); document.write( "$0.05N+$0.10D=$2.20 Substitute for D. \n" ); document.write( "$0.05N+$0.10(N+10)=$2.20 \n" ); document.write( "$0.05N+$0.10N+$1.00=$2.20 Subtract $1.00 from each side \n" ); document.write( "$0.15N=$1.20 Divide each side by $0.15 \n" ); document.write( "N=8 ANSWER There are 8 nickels. \n" ); document.write( "CHECK: \n" ); document.write( "D=N+10=8+10=18 There are 18 dimes \n" ); document.write( "$0.05N+$0.10D=$2.20 \n" ); document.write( "$0.05(8)+$0.10(18)=$2.20 \n" ); document.write( "$0.40+$1.80=$2.20 \n" ); document.write( "$2.20=$2.20 \n" ); document.write( " |