document.write( "Question 988492: Soybean meal in 16% protein and corn meal is 9% protein. How many pounds of each should be mixed to get a 350 lb mixture that is 12% protein? \n" ); document.write( "

Algebra.Com's Answer #609036 by MathTherapy(10552) $\"\"$ $\"About$

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Soybean meal in 16% protein and corn meal is 9% protein. How many pounds of each should be mixed to get a 350 lb mixture that is 12% protein?
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Let amount of 16% protein to mix, be S
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document.write( "Then amount of 9% protein to mix = 350 - S
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document.write( "We then get: .16S + .09(350 - S) = .12(350)
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document.write( ".16S + 31.5 - .09S = 42
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document.write( ".16S - .09S = 42 - 31.5
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document.write( ".07S = 10.5
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document.write( "S, or amount of 16% protein to mix = , or  lbs
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document.write( "Amount of 9% protein to mix = 250 - 150, or  lbs \n" );
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