I am stuck!

The function f(x) =240x/100-x models the cost , f(x), in millions of dollars, to remove x% of a rivers pollutants, and if the government commits $760 million for this project, what percentage of the pollutants can be removed?
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1 Answer

When f(x)=$760M, 760=240x/(100-x)

760/240=19/6=x/(100-x)

19(100-x)=6x

1900-19x=6x; 25x=1900

x=1900/25=76.

76% of pollutants can be removed.
by Top Rated User (1.1m points)

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