document.write( "Question 133215This question is from textbook Amco's Integrated Algebra 1
\n" ); document.write( ": Two cans of soda and an order of fries cost $2.60. One can of soda and two orders of fries cost $2.80. What is the cost of a can of soda and of an order of fries? \n" ); document.write( "
Algebra.Com's Answer #97420 by stanbon(75887)\"\" \"About 
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Two cans of soda and an order of fries cost $2.60. One can of soda and two orders of fries cost $2.80. What is the cost of a can of soda and of an order of fries?
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\n" ); document.write( "Let cost of soda be \"x\"; Let cost of fries be \"f\".
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\n" ); document.write( "EQUATIONS:
\n" ); document.write( "2s + f = 2.60
\n" ); document.write( "s +2f = 2.80
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\n" ); document.write( "Multiply 1st be 2 to get:
\n" ); document.write( "4s + 2f = 5.20
\n" ); document.write( "Sutract 2nd from 3rd to get:
\n" ); document.write( "3s = 2.40
\n" ); document.write( "s = .80 (cost of soda)
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\n" ); document.write( "Substitute to solve for \"f\":
\n" ); document.write( "2*0.8 + f = 2.6
\n" ); document.write( "1.6 + f = 2.6
\n" ); document.write( "f = 1 (cost of fries)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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