document.write( "Question 160385This question is from textbook Introductory and Intermediate Algebra, 3e
\n" );
document.write( ": Soybean meal is 14% protein ; cornmeal is 7% protein. How many pounds of each should be mixed together in order to get the 280lb mixture that is 13% protein? \r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "How many pounds of the cornmeal should be in the mixture?
\n" );
document.write( "How many pounds of the soybeans meal should be in the mixture? \n" );
document.write( "
Algebra.Com's Answer #118348 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! .14X+.07(280-X)=.13*280 \n" ); document.write( ".14X+19.6-.07X=36.4 \n" ); document.write( ".07X=36.4-19.6 \n" ); document.write( ".07X=16.8 \n" ); document.write( "X=16.8/.07 \n" ); document.write( "X=240 POUNDS OF SOYBEAN IS USED. \n" ); document.write( "280-240=40 POUNDS OF CORNMEAL IS USED. \n" ); document.write( "PROOF: \n" ); document.write( ".14*240+.07*40=.13*280 \n" ); document.write( "33.6+2.8=36.4 \n" ); document.write( "36.4=36.4 \n" ); document.write( " |