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August 21, 2014

August 21, 2014

Posted by **GGIFT** on Monday, March 8, 2010 at 8:31am.

300-3x

a. What is the cost to remove 75% of the pollutant?

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

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

d. For what value is this equation undefined?

e. Do the answers to sections a. through d. match your expectations? Explain why or why not.

- ALGEBRA -
**Reiny**, Monday, March 8, 2010 at 8:51amType divisions this way ...

C = 6000/(300-x)

a) replace x with 75

C = 6000/(300-3(75))

= 6000/75 = 80

b) you try it, should get 200

c) should be really high

d) what happens when x = 100 ?

- ALGEBRA -
**GGIFT**, Monday, March 8, 2010 at 8:55amFor A...I have 80million

B...200million

C...58 million

- ALGEBRA -
**Reiny**, Monday, March 8, 2010 at 9:17amc)

C = 6000/(300 - 3(99))

= 6000/3

= 2000 million

- ALGEBRA -
**GGIFT**, Monday, March 8, 2010 at 2:37pmok i did it like this:

6000/(300-3*99)

oh!!! never mind got it now..thank you!!!!

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