- #1
wahaj
- 156
- 2
Homework Statement
How fast is the volume of a rectangular box changing when the length = 6 cm, width = 5 cm and depth = 4 cm and the length and height are increasing at a rate of 1 cm/s and width is decreasing at a rate of 2 cm/s.
Homework Equations
Volume of a rectangle = l*w*h
The Attempt at a Solution
I know how to solve these kinds of the problems, done about 20 so far. The only trouble I am having is that I don't know which variable to take the derivative with since I have 3. I just can't figure out where to start this problem.
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