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

Algebra ->  Functions -> 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      Log On


   

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) About Me  (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?
:
%28240x%29%2F%28100-x%29 = 560
multiply both sides by (100-x)
240x = 560(100-x)
240x = 56000 - 560x
240x + 560x = 56000
800x = 56000
x = 56000%2F800
x = 70% of the nasty stuff removed