document.write( "Question 176782: Soybean meal is 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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Algebra.Com's Answer #131856 by Mathtut(3670) $\"\"$ $\"About$

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let x and y be the amount of soy bean mixture and cornmeal mixture respectively
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\n" ); document.write( "x+y=350.............eq 1
\n" ); document.write( ".16x+.09y=.12(350)..eq 2
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\n" ); document.write( "rewrite eq 1 to x=350-y and plug it into eq 2
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\n" ); document.write( ".16(350-y)+.09y=42
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\n" ); document.write( "56-.16y+.09y=42
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\n" ); document.write( "-.07y=-14
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\n" ); document.write( " $\"highlight%28y=200%29\"$ pounds of cornmeal mix
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\n" ); document.write( "x=350-y $\"x=350-y=350-200=highlight%28150%29\"$ pounds of soy bean mix \n" ); document.write( "

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