Mrs brown wants to tile her kitchen floor the tiles are 3 Inches on each side. The floor is 10 feet by 15 feet. How many tiles does she need?

Wouldn't she need 40 times to run along the 10 ft side?

Wouldn't she need 60 tiles to run along the 15 ft side?

So what is 40 x 60 ?

or

area of floor = 150 square feet.
She will need 16 tiles for each square foot.
So .....

convert feet to inches:

10 feet = 120 inches
15 feet = 180 inches

get the area of the floor:
120in x 180in= 21,600in^2

divide the area of the floor to the area of the tile:

area of the tile is "9in^2"

21600in^2 divided by 9in^2 is 2,400 tiles.

To determine how many tiles Mrs. Brown needs, we first need to convert the dimensions of the floor into the same unit as the tiles. Since the tiles are given in inches, we need to convert the floor dimensions from feet to inches.

1 foot is equal to 12 inches. So, the floor is:
10 feet x 12 inches/foot = 120 inches wide
15 feet x 12 inches/foot = 180 inches long

Next, we need to calculate the area of the floor in square inches. The area of a rectangle is calculated by multiplying its length by its width. So, the area is:
120 inches x 180 inches = 21,600 square inches

Now we need to determine how many tiles can fit into the area of the floor. We will assume that the tiles are perfectly aligned and cover the entire floor without any gaps or overlaps.

Each tile has an area of 3 inches x 3 inches = 9 square inches.

To find the number of tiles needed, divide the area of the floor by the area of each tile:
21,600 square inches ÷ 9 square inches/tile = 2,400 tiles

Therefore, Mrs. Brown would need 2,400 tiles to cover her kitchen floor.