document.write( "Question 1177425: Jimmy has a pocket full of quarters and nickels. There are a total of 50 coins. When he added it all up he had $10.50. How many nickels did he have?\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #806385 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
Jimmy has a pocket full of quarters and nickels.
\n" ); document.write( " There are a total of 50 coins.
\n" ); document.write( " When he added it all up he had $10.50.
\n" ); document.write( " How many nickels did he have?
\n" ); document.write( ":
\n" ); document.write( "let n = no. of nickels
\n" ); document.write( "there are 50 coins, therefore
\n" ); document.write( "(50-n) = no. of quarters
\n" ); document.write( ":
\n" ); document.write( ".05n + .25(50-n) = 10.50
\n" ); document.write( ".05n + 12.5 - .25n = 10.50
\n" ); document.write( ".05n - .25n = 10.50 - 12.50
\n" ); document.write( "-.20n = -2
\n" ); document.write( "n = -2/-.2
\n" ); document.write( "n = 10 nickels
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check this (50-10 = 40 quarters)
\n" ); document.write( ".05 * 10 = 0.50
\n" ); document.write( ".25 * 40 = 10.00
\n" ); document.write( "-----------------
\n" ); document.write( "totals to: 10.50 \n" ); document.write( "

\n" );