I wasn't sure is fhe 10 was for inches or feet, so both calculations are below. 10 inches deep: 80 x 50 x 1 = 4000cf x 10/12 = 40000 / 12 = 3333.334 cubic feet of sand 10 feet deep: 80 x 50 x 10 = 40,000 cubic feet of sand
You need to specify how deep the area is to answer the question; this is a volume problem. Please ask again
That's the "volume" of the space.
.15
360 cubic meters of salt.
the number of cubic units to fill an object is called its volume
The volume of a of a 3-d object is the number of cubic needed to fill the object.
You are mixing volume (square yard) and area (length x width). How deep do you want the dirt? One foot deep you need about 80 square yards of dirt.
Volume
The volume of the pool is 2,290.2 cu ft and has a maximum capacity of 17,133.2 gallons of water.
The capacity or volume.
Tonnage is a measure of weight. The sizes you've given are a measure of volume. You need to know the density of whatever you're going to fill the 25x50x7 space with to get from volume to weight.
2.37 cubic yards of dirt is needed to fill an 8'X4' that is 24" deep garden box. If the box is filled 12 inches, the amount of soil needed is 1.19 cubic yards and that should be deep enough for most vegetables.