Hi everyone,

A company determines that the daily cost of producing a certain commodity is given by the function C(x)=170x + 3081, and the selling price varies according to the function p=-0.25x + 615, where x is the number of items sold. Determine the actual profit made on the 108th item.

I know the answer is $391.50, but can you tell me how to find it? Thanks.

Question

Hi everyone, 

A company determines that the daily cost of producing a certain commodity is given by the function C(x)=170x + 3081, and the selling price varies according to the function p=-0.25x + 615, where x is the number of items sold. Determine the actual profit made on the 108th item.

I know the answer is $391.50, but can you tell me how to find it? Thanks.

crashonce · Answer

im not sure, i think you sub x = 108 into the equations?