document.write( "Question 64246: Anna has 12 bills in her wallet, some $5 and some $10. The total value of the bills is $100. How many of each bill does Anna have? \n" ); document.write( "
Algebra.Com's Answer #44904 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Anna has 12 bills in her wallet, some $5 and some $10. The total value of the bills is $100. How many of each bill does Anna have?
\n" ); document.write( "------
\n" ); document.write( "Let number of $5 bill be x ; their value is 5x dollars
\n" ); document.write( "Number of $10 bills is \"12-x\"/ value is 10(12-x)=120-10x dollars
\n" ); document.write( "-----------
\n" ); document.write( "EQUATION:
\n" ); document.write( "value + value = $100
\n" ); document.write( "5x+120-10x=100
\n" ); document.write( "-5x=-20
\n" ); document.write( "x=4 (# of $5 bills)
\n" ); document.write( "12-x=8 (# of $10 bills)
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );