how many boxes of wood flooring would i need if there are 19.72 sq feet in a box to cover 640 sq feet of an area?
0.5 miles is bigger than 640 feet.
48% of 640 = 48% * 640 = 0.48 * 640 = 307.2
640
80% of 640 = 0.8 x 640 = 512
71.11 square yards.
To convert square feet to square yards, you need to divide by 9. Therefore, 40 feet by 16 feet is 640 square feet. Dividing 640 by 9 gives you approximately 71.11 square yards.
1 yard = 3 feet 640 yards = 1920 feet
640 acres = 27,878,400 square feet.
6 inches = 0.5 foot27 cubic feet = 1 cubic yardVolume = (640 x 0.5) = 320 cubic feet = 1123/27 cubic yards = 11.852 (rounded)
The answer to how many yards depends upon how deep the material (ie, rock or mulch) is to be in the area. Using mulch as the material, at 2" deep, the anwer would be 4.26 yards (formula is L X W divided by 150) 640/150= 4.26 yards At 3" deep, the answer is 6.40 yards (L X W divided by 100) 640/100=6.4
One acre is equal to 43,560 square feet or approximately 4,840 square yards.
640 acres = 27,878,400ft²
43560 square feet in an acre. 640 acres in a square mile.
80 feet x 8 feet = 640 square feet.
640 acres is 27,878,400 square feet (@43,560 sq ft per acre).
4.4444. 144 square inches to a square foot.