Suppose a Cost-Benefit Model Is Given by F(x) $$f ( x ) = \frac { 3.9 x } { 100 - x }$$

question 62

Multiple Choice

Suppose a cost-benefit model is given by f(x) $$f ( x ) = \frac { 3.9 x } { 100 - x }$$ , where y is the cost in thousands of dollars for removing x percent of a given pollutant. Find the cost of removing 30% to the nearest dollar.

• A) $3900
• B) $1170
• C) $1671
• D) $428

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