document.write( "Question 874912: 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( "How many pounds of cornmeal should be in the mixture?
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #527845 by mananth(16946)![]() ![]() You can put this solution on YOUR website! percent ---------------- quantity \n" ); document.write( "soybean 18.00% ---------------- x pounds \n" ); document.write( "Cereal 9.00% ------ 360 - x pounds \n" ); document.write( "Mixture 15.00% ---------------- 360 \n" ); document.write( "Total 360 pounds \n" ); document.write( "18.00% x + 9.00% ( 360 - x ) = 15.00% * 360 \n" ); document.write( "18 x + 9 ( 360 - x ) = 5400 \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 pounds 18.00% soybean \n" ); document.write( " 120 pounds 9.00% Cereal \n" ); document.write( " \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |