If the question refers to 3 cubic yards of sand then all measurements need to be converted to a common unit for the calculation to be made. Let the chosen unit be feet.
1 cubic yard = 3 x 3 x 3 = 27 cu ft : 3 cubic yards = 3 x 27 = 81 cu ft.
12 inches = 1 foot : 16 inches = 16/12 = 1.333 feet.
Volume of sand required = Area x depth = 54 x 1.333 = 72 cu ft.
The amount of sand will easily fill the space - leaving 9 cu ft = 1/3 cu yard as surplus.
Three acres three inches deep is 403.33 cubic yards.
tweleve
806.66 Cubic Yards
16.02
if that is 3 ft deep it would require 96 yards... IF it is 3 inches deep it would require 24 cubic yards
three
Three acres three inches deep is 403.33 cubic yards.
15.833... [cubic] yards.
tweleve
1 cubic yard will cover 15 square yards at 3 inches deep.
Usually a cubic yard will cover 15 square yards at 3 inches deep so I would reckon on 22 cubic yards. Hold on that I've got that wrong it's 2 cubic yards .Sorry.
62/3 cubic yards for every 1-foot deep. 5 cubic yards for every 9-inches deep. 31/3 cubic yards for every 6-inches deep. 5/9 cubic yard for every 1-inch deep.
806.66 Cubic Yards
16.02
if that is 3 ft deep it would require 96 yards... IF it is 3 inches deep it would require 24 cubic yards
1500 sq ft * 4 inches = 1500/9 sq yards * 1/9 yards = 18.518518... cubic yards.
That depends on how DEEP you want the concrete !