document.write( "Question 324537: Candy A sells for $2.50 / kg. Candy B sells for $5.00 / kg. What quantities of each candy should be used to make up 100 kg to sell for $4.00 / kg? \n" ); document.write( "
Algebra.Com's Answer #232319 by Fombitz(32388)\"\" \"About 
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1.\"A%2BB=100\"
\n" ); document.write( "2.\"2.5A%2B5B=4%28100%29=400\"
\n" ); document.write( "Multiply eq. 1 by -2.5 and add to eq. 2,
\n" ); document.write( "\"-2.5A-2.5B%2B2.5A%2B5B=-250%2B400\"
\n" ); document.write( "\"2.5B=150\"
\n" ); document.write( "\"highlight%28B=60%29\"
\n" ); document.write( "Then from eq. 1,
\n" ); document.write( "\"A%2B60=100\"
\n" ); document.write( "\"highlight%28A=40%29\"
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\n" ); document.write( "40 kg of Candy A and 60 kg of Candy B.
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