Solve the Problem $C ( x ) = \frac { 500 x } { 140 - x }$

question 272

Multiple Choice

Solve the problem.
-A power company burns coal to generate electricity. The cost C x (in $1000) to remove x% of the air pollutants is given by: $C ( x ) = \frac { 500 x } { 140 - x }$
a. Compute the cost to remove 25% of the air pollutants.
b. If the power company budgets $1.4 million for pollution control, what percentage of the air Pollutants can be removed?

• A) a. \(\frac { 2500000 } { 23 }\)
• b. \(135.17 \%\)
• B) a. \(\frac { 2500 } { 23 }\)
• b. \(135.17 \%\)
• C) a. \(\frac { 2500 } { 23 }\)
• b. \(103.16 \%\)
• D) a. \(\frac { 2500000 } { 23 }\)
• b. \(103.16 \%\)

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