It would be helpful to have units of measurement in the equation. However, pouring a slab I'll presume your measurements are feet x feet x inches. The volume of this slab is 55 x 15 x 0.5 (6 inches is 0.5 ft) = 412.5 cubic feet
1 yard of cement (more likely concrete as a cement slab will crumble under load)
is equal to 27 cu.ft. So, 412.5 cu.ft. needed / 27 cu. ft. / cu. yd. = 15.2777...cu. yards.
you will need to order 15.27777...cu. yards, as a yard isn't sold in this decimal you will need to order 15 1/2 yards of concrete to pour your slab.
5 yards in 15 feet.
15 ft = 5 yards 5 yards* 5 yards = 25 square yards
15 yards!
There are 15 feet are in five yards.
Answer: 45 ' = 15 yards.
A 15' x 20' x 4" slab needs at least 3.7 cubic yards.
6.48 cu yards
15'x37'x4" requires 6.85 cubic yards.
14.8 cubic yards will work but round to 15 to be sure.
15 cubic yards
15 cubic yards
15 meters = 16.4 yards.
5 yards in 15 feet.
15 yards.
15 yards
15 ft = 5 yards 5 yards* 5 yards = 25 square yards
150 yards.