as the fish-and-game warden of your township, you are responsible for stocking the town pond with fish before fishing season. the average depth of the pond is 20 feet. you plan to start the season with one fish per 1000 cubic feet. you intend to have at least 25% of the opening day's fish population left at the end of the season.what is the maximum number of licenses the town can sell if the average seasonal catch is 20 fish per license?
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Respuesta :

(1/2) (200 ft) (0 + 2 *520 + 2 * 800 ft + . . .+2*860 ft + 0)
= 1,332,000 ft^2

Average depth of 20 ft =
1,332,400 / 20   = 2,664,000 ft^3

2,664,000 ft^3 / 1 fish/1,000 ft^3  = 26,640 fishes
26,640 x 75 %  = 19,980 catchable fishes
19,980 /20   = 999 licenses

hope this helps