document.write( "Question 307336: please help me figure out this problem:\r
\n" ); document.write( "\n" ); document.write( "Ruben bought 2 cheeseburgers and 3 bags of fries for $16.50, not including tax. Chris bought 1 cheeseburger and 2 bags of fries for $9.50, not including tax. What was the cost of a bag of fries?
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Algebra.Com's Answer #219917 by checkley77(12844)\"\" \"About 
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2C+3F=16.50
\n" ); document.write( "1C+2F=9.50 MULTIPLY BY -2 &ADD.
\n" ); document.write( "-2C-4F=-19.00
\n" ); document.write( "2C+3F=16.50
\n" ); document.write( "---------------
\n" ); document.write( "-F=-3.00
\n" ); document.write( "F=$3.00 COST OF 1 BAG OF FRIES.
\n" ); document.write( "C+2*3=9.50
\n" ); document.write( "C+6=9.50
\n" ); document.write( "C=9.50-C
\n" ); document.write( "C=3.50 COST OF 1 CHEESEBURGER.
\n" ); document.write( "PROOF:
\n" ); document.write( "2*3.50+3*3=16.50
\n" ); document.write( "7.00+3*3=16.50
\n" ); document.write( "7.50+9=16.50
\n" ); document.write( "16.50=16.50
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