document.write( "Question 169161: soybean meal is 14% protein, cornmeal is 7% protein, how many pounds of each should be mixed together in order to get a 280 pound mixture that is 12% protein \n" ); document.write( "
Algebra.Com's Answer #124754 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! .14x+.07(280-x)=.12*280 \n" ); document.write( ".14x+19.6-.07x=33.6 \n" ); document.write( ".07x=33.6-19.6 \n" ); document.write( ".07x=14 \n" ); document.write( "x=14/.07 \n" ); document.write( "x=200 pds. of soybeans is used. \n" ); document.write( "280-200=80 pds. of cornmeal is uded. \n" ); document.write( "Proof: \n" ); document.write( ".14*200+.07*80=33.6 \n" ); document.write( "28+5.6=33.6 \n" ); document.write( "33.6=33.6 \n" ); document.write( " |