document.write( "Question 102919: Jill has $3.50 in nickels and dimes. If she has 50 coins, how
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document.write( "many of each type of coin does she have? \n" );
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Algebra.Com's Answer #74858 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! N+D=50 OR N=50-D \n" ); document.write( "5N+10D=350 \n" ); document.write( "5(50-D)+10D=350 \n" ); document.write( "250-5D+10D=350 \n" ); document.write( "5D=350-250 \n" ); document.write( "5D=100 \n" ); document.write( "D=100/5 \n" ); document.write( "D=20 NUMBER OF DIMES. \n" ); document.write( "50-20=30 NUMBER OF NICKLES. \n" ); document.write( "PROOF \n" ); document.write( "5*30+10*20=350 \n" ); document.write( "150+200=350 \n" ); document.write( "350=350 \n" ); document.write( " |