Did I do this right?
1. The cost, in millions of dollars, to remove x % of pollution in a lake modeled by
a. What is the cost to remove 75% of the pollutant?
I got $3,022,670,025
Did you leave out some information?
Re-check your problem. I think you are missing a part here.
pollution in a lake modeled by ?
sorry it didn't paste the formula.. lets try again....
1. The cost, in millions of dollars, to remove x % of pollution in a lake modeled by C=6000/(200-2x)
a. What is the cost to remove 75% of the pollutant?
I got $3,022,670,025
C = 6000/(200 - 2x)
C = 6000/(200 - 2(75))
C = 6000/(200 - 150)
C = 6000/50
C = 120 mil
120,000,000 million
or, is it
C = 6000/(200 - 2(.75))
C = 6000/(200 - 1.5)
C = 6000/198.5
C = 30.2267 mil
30,226,700 million
I think it's the first, but I am not a tutor
Thank you.. I too got both those answers.. at least the second answer you got to an extent.. not sure which is correct myself.
To determine if you calculated the cost correctly to remove 75% of the pollutant, we would need additional information.
Specifically, we need to know the model or equation that describes the relationship between the percentage of pollution removed and the cost in millions of dollars. The question states that the lake is modeled, so we can assume there is an equation or function relating these variables.
Once we have the model, we can substitute 75% for the percentage of pollution removed and calculate the cost. If your answer matches the result from the model, then you would have done it correctly.
Without the specific model or equation, it is difficult to verify the accuracy of your answer. Please provide more information or share the equation you used to determine the cost of removing pollution from the lake.