Question

1. You are an athletic trainer for a small high school that is in the process of building a training room under the stands to serve the football and soccer teams. You specify the room to be 22 ft by 40 ft so that all tables, whirlpools, and cabinets can be positioned properly in this room. The floor is to be a 4 inch thick slab of concrete, and in order to estimate costs, the principal asked you how much the concrete will cost. Ready-mixed concrete is sold by the “yard,” which is the amount of concrete that would fill a cube with one yard sides.

1. Assuming a yard of concrete costs $95, how much do you tell the principal that concrete will cost?
2. How many pounds does this concrete slab weigh?

Answer 1

Use the conversion from feet to yards to find the volume in cubic yard.

Then multiply the cost of 1 cubic yard to the total volume.