Posted by **tera** on Monday, March 23, 2009 at 12:20pm.

The cost, in millions of dollars to remove x% of pollution modeled by c=6000/200-2x. 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 eqaution undefined?

- math -
**Reiny**, Monday, March 23, 2009 at 1:14pm
just replace x by the percentage value

e.g. for 75% removal

cost = 6000/(200-2(75))

= 120

do the same for the others

as to D) when is the denominator zero?

when 200-2x = 0

for when x = 100

so mathematically you could never pay enough to remove 100% of the pollutants.

BTW, I don't see why the function was not reduced to c = 3000/(100-x) ?

Did the text state it this way?

## Answer this Question

## Related Questions

- Algebra - 1. The cost, in millions of dollars, to remove x % of pollution in a ...
- Algebra (please help me) - The cost in millions to remove x% of pollution in a ...
- ALGEBRA - 1. The cost, in millions of dollars, to remove x % of pollution in a ...
- Algebra - The cost in millions to remove x% of pollution in a lake modeled by C=...
- ALGEBRA 117 - 1. The cost, in millions of dollars, to remove x % of pollution ...
- algebra - 1. The cost, in millions of dollars, to remove x % of pollution in a ...
- Algebra - sorry it didn't paste the formula.. lets try again.... 1. The cost, in...
- Algebra - The cost, in millions of dollars, to remove x% of pollution in a lake ...
- Algebra 2 - Are these correct...Please help 1. The cost, in millions of dollars...
- math - The cost in millions of dollars, to remove x%of pollution in a lake is ...