document.write( "Question 490473: soybean meal is 18% protein; cornmeal is 9% protein. How many pounds of each should be mixed together in order to get 360 pound mixture that is 15% protein? \n" ); document.write( "
Algebra.Com's Answer #334099 by stanbon(75887)\"\" \"About 
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soybean meal is 18% protein; cornmeal is 9% protein. How many pounds of each should be mixed together in order to get 360 pound mixture that is 15% protein?
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\n" ); document.write( "Equation:
\n" ); document.write( "protein + protein = protein
\n" ); document.write( "0.18x + 0.09(360-x) = 0.15*360
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\n" ); document.write( "Multiply thru by 100 to get:
\n" ); document.write( "18x + 9*360 - 9x = 15*360
\n" ); document.write( "9x = 6*360
\n" ); document.write( "x = 240 lb (amt. of 18% meal needed)
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\n" ); document.write( "360-x = 120 lb (amt. of 9% mean needed)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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