document.write( "Question 387730: Joe has a collection of nickels and dimes that is worth $2.10. If the number of dimes was tripled and the number of nickels was increased by 24, the value of the coins would be $6.30. How many nickels and dimes does he have? \r
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Algebra.Com's Answer #274099 by edjones(8007)![]() ![]() You can put this solution on YOUR website! Let n=number of nickels and d=number of dimes. \n" ); document.write( ".05n+.1d=2.10 \n" ); document.write( ". \n" ); document.write( ".05(n+24)+.1*3d=6.30 \n" ); document.write( ".05n+1.2+.3d=630 \n" ); document.write( ".05n+.3d=5.10 \n" ); document.write( ". \n" ); document.write( ".05n+.3d=5.10 \n" ); document.write( ".05n+.1d=2.10 \n" ); document.write( "----------------subtract \n" ); document.write( "===>.2d=3.00 \n" ); document.write( ". \n" ); document.write( "d=15 \n" ); document.write( "n=12 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |