72 cubic feet
10 2/7 hours
if you mean a 30 foot diameter circle, then pi x 152 x 3 = 2119.5 cubic feet of dirt
1 foot = 12 inches 20 ft * 7 ft can be expressed as 240 inches * 84 inches, then 240 in * 84 in * 2 in = 40320 inches cubed or 3360 cubic feet
2640 pounds
About $4000 worth.
32 cubic ft.
To calculate the volume of sand needed to fill the sandbox, multiply its dimensions: 50 ft (length) × 1 ft (depth) × 1 ft (width) = 50 cubic feet. Therefore, you will need 50 cubic feet of sand to fill the sandbox.
To determine the amount of sand needed to fill a 6' x 6' sandbox, you also need to know the depth of the sandbox. Assuming a standard depth of 1 foot, the volume would be 6' x 6' x 1' = 36 cubic feet. Since a cubic yard contains 27 cubic feet, you'd need approximately 1.33 cubic yards of sand to fill the sandbox.
4 x 6 x .75 = 18 cu ft of sand
It will take 72 sq. ft. of sand. Or 2.66 sq. yds. That will fill the box even.
All you have to do is find the maximum volume of your sandbox. To do this, multiply the length (6 ft.) by the width (6 ft.) by the depth (10 ft.). 6 x 6 x 10 = 360 cubic feet This is if you want to fill the sandbox to the brim. If you want something about half the depth so that the sand isn't falling out everywhere, you just multiply: 6 x 6 x 5 = 180 cubic feet
192
Volume of sand required = 7 ft * 7 ft * 1/6 ft = 49/6 cubic feet = 8.166... cubic ft.
The answer will depend on the depth to which the area is covered.
15 * 5 * 0.5 = 37.5 cu ft. or 1.39 cu yards.
5300 gallons
An average sandbox typically requires about 0.5 to 1 cubic yard of sand, depending on its size and depth. For a standard sandbox measuring 4 feet by 4 feet and 12 inches deep, around 0.5 cubic yards of sand is usually sufficient. It's important to consider the desired depth of the sand for play when determining the amount needed. Always check the specific dimensions of your sandbox for a more accurate estimate.