Walter is building a storage shed shaped like a rectangular prism. It will be 7ft high and 8 feet long. How wide should it be if Walter wants 280 cubic feet of storage space?

5ft

Step-by-step explanation:

In this question, we are asked to calculate the width of a rectangular-shaped prism water storage.

Mathematically, the formula for the volume of a rectangular prism is simply the base area of the rectangular prism by the height of the prism.

Since the area of the base is L * W, the area of the prism shape as a whole is calculated as: L * W * H

Thus, we have: 7 * 8 * W = 280

W = 280/56

W = 5ft