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Solve the Problem xx Specialty Phones Is Given by the Function f(x)=15+3600xf ( x ) = 15 + \frac { 3600 } { x }

Question 22

Multiple Choice

Solve the problem.
-The average cost of producing xx specialty phones is given by the function f(x) =15+3600xf ( x ) = 15 + \frac { 3600 } { x } . Find the number of phones that must be produced for the average cost to be $24\$ 24 .


A) 360 phones
B) 40 phones
C) 440 phones
D) 400 phones

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