Quote:
Originally Posted by Pains Requiem  Me and her both have worked it out but her answer doesn't match any of the teacher's answers.
The answer we got was 1.36 something I believe, but thats not an answer.
Suppose a cost benefit model is given by the equation above, where Y is the cost in thousands of dollars of moving X% of pollutants. What % of pollutant can be removed for $40,000?
This is the part that I think is tricky. She worked out her problems the same way in school and got those answers right. |
If that's the case.
Then you replace Y with 40k and then divide both ends of the equation by 2938.
Why that 100-x there is what I don't get.