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OpenStudy (anonymous):
I am having trouble with this problem The cost, in millions of dollars, to remove x % of pollution in a lake modeled by c=6000/200-2x What is the cost to remove 75% of the pollutant?
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OpenStudy (anonymous):
Plug in x = 75 c = 6000/(200-2(75)) c= 6000/50 c= 120 million dollars! Don't forget to fan!
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