document.write( "Question 979646: A dairy farmer wants to mix a 70% protein supplement and a standard 20% protein ration to make 1100 pounds of a high-grade 50% protein ration. How may pounds of each should he use? \n" ); document.write( "
Algebra.Com's Answer #600936 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! x=70% \n" ); document.write( "1100-x=20%\r \n" ); document.write( "\n" ); document.write( ".70x+ .20(1100-x)=1100(.50)=550 lb-protein.\r \n" ); document.write( "\n" ); document.write( ".70x+220-.20x=550 \n" ); document.write( ".50x=330 \n" ); document.write( "x=660 pounds of 70%=462 lb.-protein. \n" ); document.write( "1100-x=440 pounds of 20%=88 lb-protein \n" ); document.write( "Total is 550 lb-protein.\r \n" ); document.write( "\n" ); document.write( "660 pounds of 70% \n" ); document.write( "440 pounds of 20% \n" ); document.write( " \n" ); document.write( " |