document.write( "Question 144385: I have one word problem left and need some help.\r
\n" ); document.write( "\n" ); document.write( "Soybean meal is 16% protein; cornmeal is 8% protein. How many pounds of each should be mixed together in order to get 320-lb mixture that is 9% protein? How many ponds of the cornmeal should be in the mixture? How many pounds of the soybean meal should be in the mixture?
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Algebra.Com's Answer #105127 by vleith(2983)\"\" \"About 
You can put this solution on YOUR website!
Setup two equations\r
\n" ); document.write( "\n" ); document.write( "let s be the weight of soy and c be the weight of corn\r
\n" ); document.write( "\n" ); document.write( "\"s+%2B+c+=+320\"
\n" ); document.write( "\"0.16s+%2B+0.08c+=+0.09%2A320\"\r
\n" ); document.write( "\n" ); document.write( "Now use your favorite method to solve. I will use elimination
\n" ); document.write( "\"-0.08s+-+0.08c+=%28-0.08%29320\"
\n" ); document.write( "\"0.16s+%2B+0.08c+=+0.09%2A320\"
\n" ); document.write( "---------------------------------
\n" ); document.write( "0.08s = (0.01)320
\n" ); document.write( "s = 40\r
\n" ); document.write( "\n" ); document.write( "then c=280\r
\n" ); document.write( "\n" ); document.write( "Plug in and verify the answers are correct
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