SOLUTION: The function f (x)= 240x / 100 - x models the​ cost, f(x), in millions of​ dollars, to remove​ x% of a​ river's pollutants. If the government commits $ 56
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Question 1125947: The function f (x)= 240x / 100 - x models the cost, f(x), in millions of dollars, to remove x% of a river's pollutants. If the government commits $ 560 million for this project, what percentage of the pollutants can be removed?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
The function f (x)= 240x / 100 - x models the cost, f(x), in millions of dollars, to remove x% of a river's pollutants.
If the government commits $ 560 million for this project, what percentage of the pollutants can be removed?
:
= 560
multiply both sides by (100-x)
240x = 560(100-x)
240x = 56000 - 560x
240x + 560x = 56000
800x = 56000
x =
x = 70% of the nasty stuff removed
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