document.write( "Question 677250: Aviva has a total of 67 coins, all of whick are either dimes or nickels. The total value of the coins is $5.35. Fine the number of each type of coin. \n" ); document.write( "
Algebra.Com's Answer #420786 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Aviva has a total of 67 coins, all of whick are either dimes or nickels. The total value of the coins is $5.35. Fine the number of each type of coin. \n" ); document.write( "------ \n" ); document.write( "Quantity Eq::: n + d = 67 coins \n" ); document.write( "Value EQ::::: 5n + 10d = 535 cents \n" ); document.write( "-------- \n" ); document.write( "Divide thru the Value Equation by 5: \n" ); document.write( "n + d = 67 \n" ); document.write( "n + 2d = 107 \n" ); document.write( "---- \n" ); document.write( "Subtract and solve for \"d\" \n" ); document.write( "d = 40 (# of dimes) \n" ); document.write( "------ \n" ); document.write( "Solve for \"n\": \n" ); document.write( "n + d = 67 \n" ); document.write( "n = 27 (# of nickels) \n" ); document.write( "========================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=============== \n" ); document.write( " |