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OpenStudy (anonymous):
soybean meal is 14% protien cornmeal is 7% protein .how many pounds of each should be mixed together in order to get 280 lbs mixture that is 11% protein?
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OpenStudy (anonymous):
.14s+.07c=.11
OpenStudy (anonymous):
lets write a little equation here: we will call the soybean meal: S , which of course means that 280-S=Amount of corn meal Now we have : 14S+.07(280-S)=.11*280 .14S+19.6-.07S=30.8 .07S=30.8-19.6 .07S11.2 S=11.2/.07 Which gives us: S=160 Then : 280-160=120 for the cornmeal
OpenStudy (anonymous):
my second equations would have been s+c=280 but i believe lagrange beat me to it lol
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