The answer depends on how large a bookcase you have!
1 (cubic yard) = 46 656 cubic inchesIf the depth is 2 inches then the area it will cover is 46656/2 square inches = 23,328 square inches. Convert 23,328 square inches to square yards23 328 (square inches) = 18 square yards
5 ft by 9 ft is 45 square feet. This requires 6,480 square inches to cover it.
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.
You have not said what substance you are using a ton of to cover the asphalt.
To determine how many 3 x 9 tiles are needed to cover 30 square feet, first calculate the area of one tile. A 3 x 9 tile has an area of 27 square inches (3 inches x 9 inches). There are 144 square inches in a square foot, so 30 square feet is 4,320 square inches (30 x 144). Dividing 4,320 square inches by the area of one tile (27 square inches) gives approximately 160 tiles needed to cover 30 square feet.
If those are inches, the area is 143 square inches.
Each tile covers 81 square inches. You have 1,296 square inches to cover. It will take 16 tiles to cover that area.
1.174 square feet.
144
1 (cubic yard) = 46 656 cubic inchesIf the depth is 2 inches then the area it will cover is 46656/2 square inches = 23,328 square inches. Convert 23,328 square inches to square yards23 328 (square inches) = 18 square yards
80 inches squared to just cover it
Three square feet would cover one square yard or 36 square inches.
One "yard" of dirt (meaning one cubic yard) contains 46,656 cubic inches. Spread 8 inches thick this will cover 5832 square inches or 40.5 square feet.
Knowing how many square yards in feet will cover when working with depths up to six inches, in important to know, especially in construction. There will be 54 square feet when you have a depth of six inches.
Approximately 5.8 square feet. Six square feet to be safe.
5 ft by 9 ft is 45 square feet. This requires 6,480 square inches to cover it.
That's 1,440 square inches.