document.write( "Question 176557: At a restaurant, one hamburger and two orders of fries costs $2.50. Two hamburgers and three orders of fries costs $4.25. At this rate, find the cost of one hamburger and one order of fries. \n" ); document.write( "

Algebra.Com's Answer #131644 by Mathtut(3670) $\"\"$ $\"About$

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let the cost of a hamburger and order of fries be h and f respectively
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\n" ); document.write( "h+2f=2.5......eq 1
\n" ); document.write( "2h+3f=4.25....eq 2
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\n" ); document.write( "re write eq 1 to h=2.5-2f and take that value and plug it into eq 2
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\n" ); document.write( "2(2.5-2f)+3f=4.25
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\n" ); document.write( "5-4f+3f=4.25
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\n" ); document.write( "-f=-.75
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\n" ); document.write( "$ $\"highlight%28f=.75%29\"$ per fries
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\n" ); document.write( "$ $\"highlight%28h=2.5-2%28.75%29=1.00%29\"$ per hamburger \n" ); document.write( "

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