Maximizing profit.

[kelly1]

Another word problem. Any help is greatly appreciated!!

The total profit in dollars for sales of x rowing machines is given by P(x)=-.02x^2+300x-200. What is the profit if 500 are sold? For what value of x will the profit be at a maximum? Thanks!!

 

[stapel]

Another word problem.

Yes. You've been posting quite a few simple exercises with no work shown, exactly as the "Read this before posting" message directed you not to do.

The total profit in dollars for sales of x rowing machines is given by P(x)=-.02x^2+300x-200. What is the profit if 500 are sold?

What value did you get when you plugged in the given value for "x"?

For what value of x will the profit be at a maximum?

What value did you get when you solved for the vertex (the maximum)?

Please reply showing all of the steps and reasoning you have tried thus far.

Thank you.

Eliz.