SOLUTION: This question is from a worksheet on Rational expressions and has 5 parts. I have tried to figure some parts. Am I correct? 1. The cost, in millions of dollars, to remove x % o

Question 212806: This question is from a worksheet on Rational expressions and has 5 parts. I have tried to figure some parts. Am I correct?
1. The cost, in millions of dollars, to remove x % of pollution in a lake
modeled by 6000/200-2x
a. What is the cost to remove 75% of the pollutant?
28.5 million
b. What is the cost to remove 90 % of the pollutant?
28.2 million

c. What is the cost to remove 99% of the pollutant?
28.02 million
d. For what value is this equation undefined?

e. Do the answers to sections a�d match your expectations? Why or why not?
Thank you for the help.
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
Your answers are correct according to the stated formula.
HOWEVER it doesn'r make sense that removing more pollutants would cost less.
I believe the formula is incorrect for the stated condition.
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