Recent content by malaclemys

Thank you very much for both of your responses. Let's say I wanted to maximize the term xy. How would I go about doing that? How would I find the values of x and y for which the term xy is maximized? Would I have to take partial derivatives in respect to x and y? Sorry for all the questions...

Hello, This will probably sound like a HW question, but it's not. There is a certain phone system that I can use to call someone. There is an outgoing charge per call and a per minute charge. The per minute charge is $ 7/18 The outgoing call charge is $299/90 Say I have $50 on the...