A water storage tank takes 12 hours to drain by opening the valve at the bottom. The depth y of water in the tank t hours after the valve is opened is given by the equation: o(1 t Y = 6[ 1 12 Find the rate dyldt (inm/h) at which the tank is draining at time t. Select the correct response: - dy/dt = t/12 - 1 dy/dt = (t - 1)/12 %3D dy/dt = t/12+ 1 dy/dt = (t - 12)/12

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