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July 24, 2014

Homework Help: calculus word problem

Posted by Anonymous on Thursday, October 21, 2010 at 10:49pm.

a conveyor belt pours gravel into a pile at a rate of 20 lbs per minue. the pile is shaped like an upside-down cone. the proportions of the cone are such that when the pile is complete, the diameter of the base is 6 ft and the height is 10 feet. how fast is the height of the pile changing when the pile is 7 ft high?

I keep getting stuck!

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