Problema Solution
the functionf(x=)225sqrt/100-x models the cost,f(x)in millions of dollars, to remove x% of a river's pollutants.
if the government commits $75 million for this project what percentage of the polluntants can be removed?
Answer provided by our tutors
The formula to use is given. we just put 75 in it and get the value of x
225 *sq(100-x) =75
sq(100-x) =75/225
100-x =75/225
x= 99.667