Joe's bathroom floor is 5 feet wide and 8 feet long. He will covor the floor with 3-inch square tiles. How many tiles does Joe need?

Question

I need Help

Answer 1

The area of the bathroom is 40 square feet.

 

Think about how many 3 inch tiles you need to make 1 square foot: you would need to line up 4 3-inch tiles to be 12 inches long, times 4 3-inch tiles to be 12 inches wide.

 

So each square foot will take 4 x 4 tiles, or 16 tiles.

 

There are 40 square feet, each with 16 little tiles.

 

40 x 16 = 640 little tiles.

 

Hope this helps!

 

Matt in NY

Answer 2

So the tiles he will used to cover the floor are in inches but the measurement of his floor is in feet.

 

First let's convert the dimensions of the floor into inches. 12 inches = 1 foot

 

5 feet = 5 x 12 inches = 60 inches

 

8 feet = 8 x 12 inches = 96 inches

 

From these new measurements you can find the are of the floor in inches, length x width

 

60 x 96 =5760 inches squared

 

Now he wants to cover the floor in 3 inch square tiles, so to find how many he needs we dived the area of the floor by the area of one tile.

 

5760/3 = 1920 tiles