Five. 100 feet times 4 feet times 1/3 foot (4") is
100*4/3=133.33...cubic feet
I believe a "yard of concrete" is a cubic yard and so = 33 = 27 cubic feet
133.33 / 27 = almost 5 (4.9382716...)
0.246914 cu. yards (6.666667 cu. ft ) of concrete is needed.
you would need 37.33 yards of concrete or 38 to be safe
A yard of concrete is 27 cubic ft. Your measurements, if in feet, represents 480 cubic ft. Dividing this by 27 results in 17.78 yards.
its 10 yards deep
128
40.1 cubic yards
Volume = 12 cubic feet = (12 / 27 ) 0.444 cubic yard
If it is 4 inches deep/thick, 2 cubic yards. If it is 6 inches deep/thick, 3 cubic yards.
You'll need 1.23 Cubic Yards.
2.2 Yards
1.77 cubic yards
It is about 166.67 cubic feet and you will need just over 6.17 cubic yards of concrete.
2.2222222201902215 cubic yards
12.30 cubic yards
That depends on how DEEP you want the concrete !
16.05
That's just about 3.9 cubic yards for every 6 inches deep.