document.write( "Question 304829: A boy has 34 coins in his pocket consisting of nickels and dimes. If the total value of coins is $2.20, ow many nickels does he have?\r
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document.write( "Sat Prep questions.
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Algebra.Com's Answer #218311 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! N+D=34 OR N=34-D \n" ); document.write( ".05N+.10D=2.20 \n" ); document.write( ".05(34-D)+.10D=2.20 \n" ); document.write( "1.70-.05D+.10D=2.20 \n" ); document.write( ".05D=2.20-1.70 \n" ); document.write( ".05D=.50 \n" ); document.write( "D=.50/.05 \n" ); document.write( "D=10 DIMES. \n" ); document.write( "N=34-10=24 NICKLES. \n" ); document.write( "PROOF: \n" ); document.write( ".05*24+.10*10=2.20 \n" ); document.write( "1.20+1.00=2.20 \n" ); document.write( "2.20=2.20 \n" ); document.write( " |