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March 25, 2017

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Are these correct...Please help

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?

C=6,000/(200-2X)
C=6,000/(200-2*.75))
C=6,000/(200-1.5)
C=6,000/198.5
C=30.23 Million for 75% removal.

b. What is the cost to remove 90 % of the pollutant?

C=6,000/(200-2*.9)
C=6,000/200-1.8)
C=6,000/198.2
C=30.27 Million for 90% removal.

c. What is the cost to remove 99% of the pollutant?

C=6,000/(200-2*.99)
C=6,000/(200-1.98)
C=6,000/198.02
C=30.30 Million for 99% removal.

I need help with the last two.
d. For what value is this equation undefined?
e. Do the answers to sections a–d match your expectations? Why or why not?

  • Algebra 2 - ,

    I have the same question. For what value is this equation undefined?
    and
    Do the answers to sections a-d match your expectations? why or why not?
    I'm confused on how to answer this. Please help anyone! Thank you!

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