Question: In a sand plant, the sand falls down creating a cone-shaped mound at the rate of 10 ft3 / minute. The radius of the base

In a sand plant, the sand falls down creating a cone-shaped mound at the rate of 10 ft3 / minute. The radius of

the base is 3/2 of the height. At what rate does the height of the mound change when its height is 15 ft?

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