document.write( "Question 252611: There are nickles and dimes in a collection of coins. There are twice as many nickles as dimes. The total value of the coins is $1.20. Find the number of each coin. \r
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document.write( "How do i solve this? I did a let statement but I think its wrong because my equation isn't working out... \n" );
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Algebra.Com's Answer #184617 by hokies(65) You can put this solution on YOUR website! Let d=dimes and n=nickels. You have two unknowns (d and n) so you need two equations.\r \n" ); document.write( "\n" ); document.write( "n = 2*d (twice as many dimes as nickels) \n" ); document.write( "d*.1 + n*.05 = 1.20 (total value equals the value from the dimes and nickels)\r \n" ); document.write( "\n" ); document.write( "solve these two equations:\r \n" ); document.write( "\n" ); document.write( "n=12 and d=6 \n" ); document.write( " |