document.write( "Question 125067: Calvin paid his $1.35 skate rental with dimes and nickels only. There were 19 coins in all. How many of each coin were there? \n" ); document.write( "
Algebra.Com's Answer #91702 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! N+D=19 N=19-D \n" ); document.write( ".10D+.05(19-D)=1.35 \n" ); document.write( ".10D+.95-.05D=1.35 \n" ); document.write( ".05D=1.35-.95 \n" ); document.write( ".05D=.40 \n" ); document.write( "D=.40/.05 \n" ); document.write( "D=8 DIMES. \n" ); document.write( "19-8=11 NICKELS. \n" ); document.write( "PROOF \n" ); document.write( ".10*8+.05*11=1.35 \n" ); document.write( ".80+.55=1.35 \n" ); document.write( "1.35=1.35\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |