document.write( "Question 33249: The following is my problem:
\n" );
document.write( "A man has two more nickels than dimes. He has $1.15 in all. How many coins of each kind does he have. I know this looks simple but I cannot figure it out. I keep getting a negative number. Please help! \n" );
document.write( "
Algebra.Com's Answer #19640 by sarah_adam(201)![]() ![]() ![]() You can put this solution on YOUR website! Let number of Nickels be N \n" ); document.write( "and Number of dimes be D \n" ); document.write( "given 0.05(D)+ 0.10(N) = 1.15 \n" ); document.write( "ALso given N = 2+D \n" ); document.write( "so (5/100)D +(10/100)N = 1.15 \n" ); document.write( "5D + 10N = 115 \n" ); document.write( "substitute the value of N \n" ); document.write( "5D + 10(2+D) = 115 \n" ); document.write( "5D + 20 +10D = 115 \n" ); document.write( "15D = 105 \n" ); document.write( "D = 7 \n" ); document.write( "N = 7+2 = 9 \n" ); document.write( "THerfore Number of Dimes = 7 \n" ); document.write( "Number of Nickels = 2 \n" ); document.write( " |