Solve the Problem $C ( x ) = \frac { 1200 } { x + 40 }$

question 381

Multiple Choice

Solve the problem. Round to two decimal places unless otherwise indicated.
-If the average cost per unit C(x) to produce x units of plywood is given by C(x) $C ( x ) = \frac { 1200 } { x + 40 }$ , what do 400 units cost?

• A) $1199.90
• B) $120.00
• C) $12000.00
• D) $1090.91

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