A cylindrical tank with a radius of 3 feet and a height of 10 feet is filled with water. If the tank is being emptied at a rate of 2 cubic feet per minute, how many minutes will it take to empty the tank completely?
To find the volume of the tank, use the formula for the volume of a cylinder: $$ V = ext{base area} imes ext{height} $$, where the base area is given by $$ ext{base area} = ext{π}r^2 $$.
Calculate the total volume of the tank first.