I have tried 36, 35.8,35.83
Edit:
I went back and put 37 and it said I was correct, the correct answer was actually 36.6. I haven't the faintest clue as to how it is 36.6 mph.
Homework Statement
Now, suppose the student wishes to bring back some ice cream from the restaurant for her friends at school, but since it is such a hot day, the ice cream will melt away in the car in only 5 minutes. How fast will the student have to drive back to get the ice cream to her...
Homework Statement
The cost of producing x units is given by:
f(x)=800+110x-110ln(x)
Find the minimum average cost. x >= 1
Homework Equations
Cost=f(x)/x
Marginal cost is C'(x)
The Attempt at a Solution
This is what I have done so far:
C(x)=(800+110x-110ln(x))/x...