document.write( "Question 489683: 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.
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document.write( "How many pounds of the cornmeal should be in the mixture?
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document.write( "How many pounds of the soybean should be in the mixture? \n" );
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Algebra.Com's Answer #333729 by mananth(16949) You can put this solution on YOUR website! percent percentage ---------------- quantity \n" ); document.write( "Soyabean 18 ---------------- x lb \n" ); document.write( "cornmeal 9 ---------------- 360 - x lb \n" ); document.write( "Mixture 15.00% ---------------- 360 \n" ); document.write( " \n" ); document.write( "18 x + 9 ( 360 - x ) = 15 * 360 \n" ); document.write( " \n" ); document.write( "18 x + 3240 - 9 x = 5400 \n" ); document.write( "18 x - 9 x = 5400 - 3240 \n" ); document.write( "9 x = 2160 \n" ); document.write( "/ 9 \n" ); document.write( " x = 240 lb 18.00% Soyabean \n" ); document.write( " 120 lb 9.00% cornmeal \n" ); document.write( " \n" ); document.write( " |