document.write( "Question 148639: soybean meal is 18% protein; cornmeal is 9% protein. How many pounds of each should be mixed together in order to get 360-lb mixture that is 13% protein? \n" ); document.write( "
Algebra.Com's Answer #108997 by checkley77(12844)\"\" \"About 
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.18X+.09(360-X)=.13*360
\n" ); document.write( ".18X+32.4-.09X=46.8
\n" ); document.write( ".09X=46.8-32.4
\n" ); document.write( ".09X=14.4
\n" ); document.write( "X=14.4/.09
\n" ); document.write( "X=160 POUNDS OF SOYBEAN IS NEEDED.
\n" ); document.write( "360-160=200 POUNDS OF CORNMEAL IS NEEDED.
\n" ); document.write( "PROOF:
\n" ); document.write( ".18*160+.09*200=.13*360
\n" ); document.write( "28.8+18=46.8
\n" ); document.write( "46.8=46.8\r
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