document.write( "Question 523649: sue bought 4 packs of cookies and 3 sacks of potato chips for 5.01. Later she bought 3 pack of cookies and 5 sacks of potato chips for 5.27. what is the price of a pack of cookies?
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Algebra.Com's Answer #347357 by stanbon(75887) $\"\"$ $\"About$

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sue bought 4 packs of cookies and 3 sacks of potato chips for 5.01. Later she bought 3 pack of cookies and 5 sacks of potato chips for 5.27. what is the price of a pack of cookies?
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\n" ); document.write( "Equations:
\n" ); document.write( "4c + 3p = 5.01
\n" ); document.write( "3c + 5p = 5.27
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\n" ); document.write( "Multiply thru 1st equation by 3
\n" ); document.write( "Multiply thru 2nd equation by 4
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\n" ); document.write( "12c + 9p = 3*5.01
\n" ); document.write( "12c + 20p = 4*5.27
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\n" ); document.write( "Subtract and solve for \"p\":
\n" ); document.write( "11p = 6.05
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\n" ); document.write( "p = $0.55 (cost of potato chips)
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\n" ); document.write( "Solve for \"c\":
\n" ); document.write( "3c + 5p = 5.27
\n" ); document.write( "3c + 5*0.55 = 5.27
\n" ); document.write( "3c = 2.52
\n" ); document.write( "c = $0.84 (cost of cookies)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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