document.write( "Question 335269: a bank teller has 125 $10 and $5 bills to start a day. If the total value of the bills was $1000, how many $5 bills did the teller have? \n" ); document.write( "
Algebra.Com's Answer #240298 by Fombitz(32388)\"\" \"About 
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Let T be the number of $10 bills, and F be the number of $5 bills.
\n" ); document.write( "1.\"T%2BF=125\"
\n" ); document.write( "2.\"10T%2B5F=1000\"
\n" ); document.write( "Multiply eq. 1 by -5 and add the two equations.
\n" ); document.write( "\"-5T-5F%2B10T%2B5F=-625%2B1000\"
\n" ); document.write( "\"5T=375\"
\n" ); document.write( "\"highlight%28T=75%29\"
\n" ); document.write( "Then from eq. 1,
\n" ); document.write( "\"75%2BF=125\"
\n" ); document.write( "\"highlight%28F=50%29\"
\n" ); document.write( ".
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\n" ); document.write( "75 $10 bills and 50 $5 bills.
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