# How many bricks do you need to cover a 12' X 12' room?

Assuming a brick is 4" x 8", if you lay out your bricks, 3 wide and 3 long, you'll get an area 12 inches x 24 inches. So every 9 brick, you'll cover 2 square feet. This gives the basic calculation of 4.5 bricks per square foot. A 12' x 12' room is 144 square feet. 144 x 4.5 = 648 bricks needed

### How many 4x8 sheets of plywood do you need to cover a room 10x10?

Each sheet of plywood covers 4 x 8 = 32 square feet. -- 10 x 10 = 100 square feet. -- 100/32 = 3.125 . . . If you cover only the floor of the room, then you need 4 sheets, but you only use 1/8 of the fourth one. -- 200/32 = 6.25 . . . If you cover both the floor and the ceiling, then you need 7 sheets, but you only…

### How many square feet of carpet do you need to cover a 12 foot by 15 foot room how many square yards?

### How many square feet of carpet do you need to cover a 12 foot by 18 foot room how many square yards?

### How many 12x12 tile do you need for a 20ft x 12 ft room?

We don't see the units on the 12x12 tile, but we have to assume it's inches. So each tile = 1 square foot. The room measures 20-ft x 12-ft = 240 square feet. So it takes 240 tiles to cover the ceiling, and another 240 to cover the floor. In order to calculate how many tiles it takes to cover the walls, we need to know the height of the ceiling above the floor.

### Why is algebra useful?

Algebra is used, for instance, you want to carpet a room. the area of a rectangle is the length of the side times the width & if it's written in feet, i.e. a room 8' x 6' would be 48 sq feet. it would be called the square footage of that area (example: how many square feet of carpet do you need to cover the floor of a room). You would need 48 squares 1'…