What is the volume of a slab of concrete that is 150 ft long, 200 ft wide, and 3 in thick?

To find the volume of the slab of concrete, the formula used is:

Volume = Length × Width × Height

In this scenario, the length is 150 feet, the width is 200 feet, and the thickness (height) needs to be converted to feet because the other dimensions are in feet. Since there are 12 inches in a foot, 3 inches is equal to 3/12 feet or 0.25 feet.

Now, substituting the values into the formula:

Volume = 150 ft × 200 ft × 0.25 ft

Calculating this step-by-step:

1. First, multiply the length and width: 150 ft × 200 ft = 30,000 ft²

2. Next, multiply the result by the thickness: 30,000 ft² × 0.25 ft = 7,500 ft³

Thus, the volume of the slab of concrete is 7,500 cubic feet. This confirms that the correct answer is indeed 7,500 ft³.