document.write( "Question 1201152: 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 15% protein? \n" ); document.write( "

Algebra.Com's Answer #835414 by ikleyn(52794) $\"\"$ $\"About$

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\n" ); document.write( "Soybean meal is 18% protein, cornmeal is 9% protein.
\n" ); document.write( "How many pounds of each should be mixed together in order to get 360-lb mixture that is 15% protein?
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document.write( "x pounds of the 18% protein and (360-x) pounds of the 9% protein.\r\n" );
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document.write( "The protein mass equation is\r\n" );
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document.write( "    0.18x + 0.09*(360-x) = 0.15*360.\r\n" );
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document.write( "Simplify and find x\r\n" );
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document.write( "    0.18x + 0.09*360 - 0.09x = 0.15*360\r\n" );
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document.write( "    0.18x - 0.09x            = 0.15*360 - 0.09*360\r\n" );
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document.write( "        0.09x                =       21.6\r\n" );
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document.write( "            x                =       21.6/0.09 = 240.\r\n" );
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document.write( "ANSWER.  Mix 240 pounds of the soybean and 360-240 = 120 pounds of the cornmeal.\r\n" );
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