document.write( "Question 160385This question is from textbook Introductory and Intermediate Algebra, 3e
\n" ); document.write( ": Soybean meal is 14% protein ; cornmeal is 7% protein. How many pounds of each should be mixed together in order to get the 280lb mixture that is 13% protein? \r
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\n" ); document.write( "\n" ); document.write( "How many pounds of the cornmeal should be in the mixture?
\n" ); document.write( "How many pounds of the soybeans meal should be in the mixture?
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Algebra.Com's Answer #118348 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
.14X+.07(280-X)=.13*280
\n" ); document.write( ".14X+19.6-.07X=36.4
\n" ); document.write( ".07X=36.4-19.6
\n" ); document.write( ".07X=16.8
\n" ); document.write( "X=16.8/.07
\n" ); document.write( "X=240 POUNDS OF SOYBEAN IS USED.
\n" ); document.write( "280-240=40 POUNDS OF CORNMEAL IS USED.
\n" ); document.write( "PROOF:
\n" ); document.write( ".14*240+.07*40=.13*280
\n" ); document.write( "33.6+2.8=36.4
\n" ); document.write( "36.4=36.4
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