Answer :
111.11 cubic feet, which rounds to 111 cubic feet of concrete are poured to form the patio.
To determine the volume of concrete poured for the patio, we need to use the information provided, which tells us the concrete weighs 144 pounds per cubic foot, and 16,000 pounds of concrete have been poured. We can then calculate the volume by dividing the total weight of the concrete by the weight per cubic foot:
Volume = Total weight / Weight per cubic foot
Volume = 16,000 pounds / 144 pounds per cubic foot
Volume = 111.11 cubic feet