CAFO Nitrogen Discharge Reduction

Question

A concentrated animal feeding operation (CAFO) initially discharges $$50$$ kg of nitrogen per day into a river. After implementing improved manure management practices, this discharge is reduced by $$60\%$$. What is the mass of nitrogen, in kilograms, discharged per day after the improvements are made?

Accepted Answer

$$50 	imes (1-0.60) = 20$$ kg/day

Answer

$$50 	imes (1-0.40) = 30$$ kg/day

Answer

$$50 	imes 0.60 = 30$$ kg/day

Answer

$$50 - 60 = -10$$ kg/day

CAFO Nitrogen Discharge Reduction

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