SOLUTION: Suppose an environmental agency decides to get rid of the impurities from the water of a polluted river. The estimated cost of removing​ x% of the impurities is given by the

Algebra.Com
Question 1064932: Suppose an environmental agency decides to get rid of the impurities from the water of a polluted river. The estimated cost of removing​ x% of the impurities is given by the following formula. How much will it cost to remove​ 50% of the​ impurities?
C(x)= 5x^2+50/x(100-x) billion dollars
It will cost ___ billion dollars to remove​ 50% of the impurities.
(Round to two decimal places as​ needed.)

Answer by Boreal(15235)   (Show Source): You can put this solution on YOUR website!
C(x)= 5x^2+50/x(100-x)
Get rid of 50%, so x is 50
C(50)=5(2500)+50/(2500)=12500-.02=$12499.98 billion.
Note: I am assuming the second term is 50/(x(100-x)) with the parentheses as shown.

RELATED QUESTIONS

Polluted water is passed through a series of filters. Each filter removes 59% of the... (answered by Theo)
As an employee for the environmental protection agency, you have been to examine the... (answered by stanbon)
Laboratory tests of bacterial counts are often used for declaring a water source... (answered by stanbon)
The environmental protection agency must investigate ten mills for complaints of air... (answered by ewatrrr)
I am going crazy trying to solve this. Please help. Assume that federal regulations... (answered by stanbon)
The Environmental Protection Agency (EPA) requires that cities monitor over 80... (answered by stanbon)
Pouches of specialty chemicals are tested for presence of impurities a or b, which render (answered by mathmate)
An oil refinery refines types A and B of crude oil and can refine as much as 4000 barrels (answered by CPhill,greenestamps,ikleyn)
hello, I have a question; A representative of the Environmental Protection Agency (EPA) (answered by stanbon)