document.write( "Question 265132: George saves dimes and nickels for tolls. If he has 28 coins worth 2.60, how many are nickels and how many are dimes. Thank you \n" ); document.write( "
Algebra.Com's Answer #195035 by checkley77(12844) ![]() You can put this solution on YOUR website! N+D=28 OR N=28-D \n" ); document.write( ".05N+.10D=2.60 \n" ); document.write( ".05(28-D)+.10D=2.60 \n" ); document.write( "1.40-.05D+.10D=2.60 \n" ); document.write( ".05D=2.60-1.40 \n" ); document.write( ".05D=1.20 \n" ); document.write( "D=1.20/.05 \n" ); document.write( "D=24 DIMES. \n" ); document.write( "N=28-24 \n" ); document.write( "N=4 NICKELS. \n" ); document.write( "PROOF: \n" ); document.write( ".05*4+.10*24=2.60 \n" ); document.write( ".20+2.40=2.60 \n" ); document.write( "2.60=2.60 \n" ); document.write( " |