document.write( "Question 123702: Jill has $3.50 in nickels and dimes.If she has 50 coins ,how many of each type of coin does she have? \n" ); document.write( "
Algebra.Com's Answer #90754 by checkley71(8403) ![]() You can put this solution on YOUR website! N+D=50 OR N=50-D \n" ); document.write( ".05N+.10D=3.50 \n" ); document.write( ".05(50-D)+.10D=3.50 \n" ); document.write( "2.5-.05D+.10D=3.50 \n" ); document.write( ".05D=3.50-2.50 \n" ); document.write( ".05D=2 \n" ); document.write( "D=1/.05 \n" ); document.write( "D=20 NUMBER OF DIMES. \n" ); document.write( "N+20=50 \n" ); document.write( "N=50-20 \n" ); document.write( "N=30 NUMBER OF NICKELS. \n" ); document.write( "PROOF \n" ); document.write( ".05*30+.10*20=3.50 \n" ); document.write( "1.5+2=3.5 \n" ); document.write( "3.5=3.5 \n" ); document.write( " \n" ); document.write( " |