1 cubic yard will cover 15 square yards at 3 inches deep.
To solve this convert all measurement to a yard or square yard basis: 3 inches is 0.083333333333 yard and 1500 square feet = 1500/9 = 166.6666666666667 square yards Thus the amount of mulch you need is 166.6666666666667*0.083333333333= 13.88888888883333 cubic yards. so you need to purchase 14 cubic yards of mulch for the job.
3.1 cubic yards for every 2 inches deep you want it to be.
1500 sq ft * 4 inches = 1500/9 sq yards * 1/9 yards = 18.518518... cubic yards.
(22/3 square yards) divided by (depth of mulch in inches)
One cubic yard of mulch will cover approximately 160 square feet at 2" deep, so you would need approximately two cubic yards of mulch to cover 271 square feet at 2" deep.
By yards I assume you mean cubic yards. Next: How deep: I assume 3 inches. (969 x 122 /3 ) / 123 = 969 / 36 = 323/12 = 26.9166666 cubic yards
That's 13 cubic yards of mulch for every 2 inches deep.
Cubic inches and square yards are two different measurements so this question cannot be answered.
The 'square feet' of area that it covers is 1,620/(depth of the mulch, in inches)
1 cubic yard = 27 cubic feet, thus 1 cubic feet = 1/27 cubic yards and 2 cubic feet = 2/27 cubic yards (1 bag of mulch) Landscapers speak in yards of mulch needed for a garden. They are referring to cubic yards. A bag of mulch is 2 cubic feet, so you would need 13.5 bags of mulch to equal 1 cubic yard (yard of mulch)
6 inches = 1/6 yards. So 70 sq yards * 6 inches = 70*1/6 cubic yards = 11.66... cubic yards.