document.write( "Question 953132: If I have $12 in nickels and dimes and have 3 time as many nickels as dimes, how many dimes do I have? Also how to work it. \n" ); document.write( "
Algebra.Com's Answer #582054 by macston(5194) You can put this solution on YOUR website! d=dimes; n=nickels=3d \n" ); document.write( "$0.10d+$0.05n=$12 (multiply number of coins by value of coins to get amount)Substitute for n. \n" ); document.write( "$0.10d+$0.05(3d)=$12 \n" ); document.write( "$0.10d+$0.15d=$12 \n" ); document.write( "$0.25d=$12 Divide each side by $0.25. \n" ); document.write( "d=48 ANSWER: There were 48 dimes. \n" ); document.write( "3d=3(48)=144 There were 144 nickels. \n" ); document.write( "CHECK: \n" ); document.write( "$0.10(48)+$0.05(144)=$12 \n" ); document.write( "$4.80+$7.20=$12 \n" ); document.write( "$12=$12 \n" ); document.write( " |