document.write( "Question 1014577: A piggy bank contains $3.20. There are twice as many nickels as quarters and half as many dimes as quarters. How many dimes are in the piggy bank \n" ); document.write( "
Algebra.Com's Answer #631061 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "D=dimes; Q=quarters=2D; N=nickels=2Q=4D \n" ); document.write( ". \n" ); document.write( "$0.05N+$0.10D+$0.25Q=$3.20 \n" ); document.write( "$0.05(4D)+$0.10(D)+$0.25(2D)=$3.20 \n" ); document.write( "$0.20D+$0.10D+$0.50D=$3.20 \n" ); document.write( "$0.80D=$3.20 \n" ); document.write( "D=4 \n" ); document.write( "ANSWER: There are four dimes. \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( ". \n" ); document.write( "N=4D=4(4)=16 \n" ); document.write( "There are 16 nickels. \n" ); document.write( ". \n" ); document.write( "Q=2D=2(4)=8 \n" ); document.write( "There are 8 nickels. \n" ); document.write( ". \n" ); document.write( "$0.05N+$0.10D+$0.25Q=$3.20 \n" ); document.write( "$0.05(16)+$0.10(4)+$0.25(8)=$3.20 \n" ); document.write( "$0.80+$0.40+$2.00=$3.20 \n" ); document.write( "$3.20=$3.20 \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( " |