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23 December, 07:38

Soybean meal is 14% protein; cornmeal is 7% protein. How many pounds of each should be mixed together in order to get 280 lb mixture that is 12% protein

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  1. 23 December, 09:56
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    Work:.14x+.07 (280-x) =.12*280

    .14x+19.6-.07x=33.6

    .07x=33.6-19.6

    .07x=14

    x=14/.07

    x=200 lbs of soybeans is used.

    280-200=80 lbs. of cornmeal is used.

    .14*200+.07*80=.12*280

    28+5.6=33.6

    33.6=33.6
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