Final answer:
An 8-yard truck can carry 216 cubic feet of concrete. For a slab 6 inches thick, the truck can pour a concrete slab covering 432 square feet.
Step-by-step explanation:
The question asks about the size of a concrete slab that can be poured from a truck with an 8 yard capacity. First, we need to convert the cubic yards to cubic feet to match the thickness of the slab in inches. There are 27 cubic feet in one cubic yard, so an 8-yard truck can carry 8 * 27 = 216 cubic feet of concrete. The slab is 6 inches thick; to pour a slab of this thickness, you would need half a foot of concrete in depth.
To find the area that can be covered by 216 cubic feet of concrete at 6 inches thick, we convert the thickness to feet, which is 0.5 feet, and then divide the volume by the thickness. Therefore, the area is 216 cubic feet / 0.5 feet = 432 square feet. So, a truckload of concrete can pour a slab that covers 432 square feet, if the slab is 6 inches thick.