document.write( "Question 329365: Soybean meal is 14% protein; cornmeal is 7% protein. How many pounds of each should be mixed together in order to get 280-lb mixture that is 10% 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 #236050 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! In words: \n" ); document.write( "(pounds of protein in final mixture)/(pounds of final mixture) = 10% \n" ); document.write( "------------------- \n" ); document.write( "Let \n" ); document.write( "Let \n" ); document.write( "given: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "(1) \n" ); document.write( "------------------- \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "(2) \n" ); document.write( "Multiply both sides of (1) by \n" ); document.write( "subtract from (2) \n" ); document.write( "(2) \n" ); document.write( "(1) \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "And, since \n" ); document.write( "(1) \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "160 pounds of cornmeal and \n" ); document.write( "120 pounds of soybean meal are needed \n" ); document.write( "check: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "OK\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |