document.write( "Question 833343: Two burgers and three orders of fries cost $6.50. Six burgers and five orders of fries cost $15.50. What is the price of an order of fries
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Algebra.Com's Answer #502510 by unlockmath(1688)![]() ![]() You can put this solution on YOUR website! Hello, \n" ); document.write( "We could solve this as: \n" ); document.write( "Let x be the price of burgers and y be the price of fries. Set up two equations. \n" ); document.write( "2x+3y=6.50 \n" ); document.write( "6x+5y=15.50 \n" ); document.write( "Multiply the first by -3 to get: \n" ); document.write( "-6x-9y=-19.50 \n" ); document.write( "6x+5y=15.50 \n" ); document.write( "Add these two equations to get: \n" ); document.write( "-4y=-4 \n" ); document.write( "y=1 Plug this into the original equation to get: \n" ); document.write( "x=1.75 \n" ); document.write( "There we go, burger cost $1.75 and fries are $1 \n" ); document.write( "Make sense? \n" ); document.write( "RJ \n" ); document.write( "www.math-unlock.com \n" ); document.write( " |