# SOLUTION: Soybean meal is 12% protein; cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240-lb mixture that is 7% protein?

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 Question 140508: Soybean meal is 12% protein; cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240-lb mixture that is 7% protein?Answer by stanbon(57967)   (Show Source): You can put this solution on YOUR website!Soybean meal is 12% protein; cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240-lb mixture that is 7% protein? ---------------- Let amt. of soy meal be "x" lbs. Amt. of protein is 0.12x lbs. ------------------- Amt of corn meal is "240-x" lbs. Amt of protein is 0.06(240-x) = 14.4-0.6x lbs ------------------- Amt of mixture is 240 lbs; Amt of protein is 0.07*240 = 16.8 lbs. ----------------------- EQUATION: protein + protein = protein 0.12x + 14.4-0.06x = 16.8 0.06x = 2.4 x = 40 lbs. (amount of soy meal in the mixture) 240-x = 200 lbs (amount of corn mean in the mixture) --------------------------- Cheers, Stan H.