2.09 cu yds
To cover that area to that depth - you would need just under 8 cubic yards of soil.
To cover a space that is 30 feet by 102 inches, first convert the dimensions to the same unit. There are 12 inches in a foot, so 30 feet is 360 inches. The area to cover is 360 inches by 102 inches, which equals 36,720 square inches. To convert this to yards, divide by 1,296 (since there are 1,296 square inches in a square yard), resulting in approximately 28.33 square yards of material needed.
105 ft * 84 ft * 3 inches = 105/3 yards * 84/3 yards * 3/36 yards = 35 * 28 / 12 cubic yards = 245 cubic yards.
yards
You will need a minimum of 38.6 square yards of carpet to cover that area.
The 'square feet' of area that it covers is 1,620/(depth of the mulch, in inches)
To cover that area to that depth - you would need just under 8 cubic yards of soil.
You would need 31.88 cubic yards of topsoil to cover 855 sq feet at 6 inches deep.
6 feet or 36 inches.
To cover a space that is 30 feet by 102 inches, first convert the dimensions to the same unit. There are 12 inches in a foot, so 30 feet is 360 inches. The area to cover is 360 inches by 102 inches, which equals 36,720 square inches. To convert this to yards, divide by 1,296 (since there are 1,296 square inches in a square yard), resulting in approximately 28.33 square yards of material needed.
105 ft * 84 ft * 3 inches = 105/3 yards * 84/3 yards * 3/36 yards = 35 * 28 / 12 cubic yards = 245 cubic yards.
6.7 cubic yards.
yards
39.1116 cubic yards
about 17 yards of concrete (it's sold by the cubic yard)
You will need at least 32 square yards of carpet to cover that area.
You will need a minimum of 38.6 square yards of carpet to cover that area.