Question

kendra used 225 cubic feet of concrete to make her new patio. the patio is a rectangular concrete slab and measures 25 feet by 18 feet. How thick is the concrete slab?

Answer 1

The formula for volume is V = (L)(W)(H). Length, width, and height are multiplied together. In this case, height is thickness. Since we are given the total area, length, and width, we just need to solve for the height/thickness. Plug in the given values:

225 = (25)(18)(H)
225 = 450*H
H = 225 ÷ 450
H = 0.5

The concrete slab is 0.5 feet thick.