document.write( "Question 307336: please help me figure out this problem:\r
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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? \n" );
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Algebra.Com's Answer #219917 by checkley77(12844) ![]() You can put this solution on YOUR website! 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 \n" ); document.write( " |