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A swimming pool is 50 feet long and 20 feet wide. Its depth varies uniformly from 2 feet at the shallow end to 12 feet at the deep end. (The figure shows a cross-section of the pool.) Suppose that the pool is being filled at the rate of 1000 gal/min. At what rate is the depth of water at the deep end increasing when the depth there is 6 feet? (One gallon of water occupies a volume of approximately 0.1337 cubic feet.)

So first of all, I can't even picture what this is supposed to look like when I draw it. Supposedly this is a related rates problem, but this doesn't go with any of the equations I've used so far (pretty much just volume equation and pythagorean theorem equation).. I don't know what I'm supposed to do, could anyone at least help me get started or walk me through? I'd appreciate it..

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# Related Rates again ?

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