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OpenStudy (anonymous):
Soybean is 14% protein; cornmeal s 7% protein, How many pounds of each should be mixed together to get 280-lb mixture that is 12% protein?
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OpenStudy (radar):
Let x = lbs of Soybean Let y = lbs of cornmeal x+y=280 lbs .14x + .07y=.12(280)=33.6 x=280-y .14(280-y)+.07y=33.6 39.2-.14y+.07y=33.6 -.07y=-5.6 y=80 lbs x=200 lbs
OpenStudy (radar):
80 pounds cornmeal 200 pounds of soybean
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