document.write( "Question 214146: Penelope has several coins, all nickels and quarters, in her piggy bank. The total amount of money that she has is $15.65. If Penelope has 13 more nickels than quarters, how many quarters does she have? \n" ); document.write( "
Algebra.Com's Answer #161805 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
Q=N-13
\n" ); document.write( ".25Q+.05N=15.65
\n" ); document.write( ".25(N-13)+.05N=15.65
\n" ); document.write( ".25N-3.25+.05N=15.65
\n" ); document.write( ".30N=15.65+3.25
\n" ); document.write( ".30N=18.90
\n" ); document.write( "N=18.90/.30
\n" ); document.write( "N=63 NICKELS.
\n" ); document.write( "Q=63-13=50 QUARTERS.
\n" ); document.write( "PROOF:
\n" ); document.write( ".25*50+.05*63=15.65
\n" ); document.write( "12.50+3.15=15.6515.65=15.65
\n" ); document.write( "
\n" ); document.write( "
\n" );