document.write( "Question 965860: If you have to pay $75.00 and have 27 bills of $1.00 and $5.00, how many bills do you need of $1.00 and $5.00 to pay. \n" ); document.write( "
Algebra.Com's Answer #802414 by CubeyThePenguin(3113)\"\" \"About 
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x = number of $1 bills
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\n" ); document.write( "\n" ); document.write( "x + y = 27
\n" ); document.write( "x + 5y = 75\r
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\n" ); document.write( "\n" ); document.write( "Multiply equation 1 by 5.\r
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\n" ); document.write( "\n" ); document.write( "5x + 5y = 135
\n" ); document.write( "x + 5y = 75\r
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\n" ); document.write( "\n" ); document.write( "Subtract to get 4x = 60 and x = 15.\r
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\n" ); document.write( "\n" ); document.write( "You need 15 one-dollar bills and 12 five-dollar bills.
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