Tristan is laying 12" x 18" tiles on the lab floor. If the lab measures 15 feet by 18 feet, how many tiles does Tristan need, assuning there's no waste.

The lab would measure

180 inches by 216 inches

case 1: longer side of tile along longer side of floor
216/18 = 12
180/12 =15
number of tiles = 12x15 = 180

case 2: shorter side of tile along the longer side of floor
216/12 = 18
180/18 = 10
number of tiles = 10x18 = 180

Of course we had to get the same answer, since division was exact either way, thus no waste

other way:
area of 1 tile = 12" by 18"
= 1ft by 1.5 ft
= 1.5 ft^2
area of floor = 15(18) or 270 ft^2

number of tiles = 270/1.5 = 180

Ah, the joy of lab floor tiling! Let's calculate the number of tiles Tristan needs. First, let's convert the lab dimensions into inches. We have 15 feet x 12 inches/foot = 180 inches, and 18 feet x 12 inches/foot = 216 inches.

Now, let's find out how many 12" x 18" tiles will fit in the lab. Since the area of each tile is 12" x 18" = 216 square inches, we can divide the total lab area (180 inches x 216 inches) by the tile area (216 square inches) to find the number of tiles needed.

180 inches x 216 inches = 38,880 square inches
38,880 square inches ÷ 216 square inches = 180 tiles

So, Tristan will need a total of 180 tiles, assuming there's no waste. Just make sure Tristan doesn't become a human tile himself in the process!

To find out how many tiles Tristan needs, we need to calculate the total area of the lab floor and then divide it by the area of each tile.

Step 1: Convert the lab dimensions to inches.
Since there are 12 inches in a foot, the dimensions of the lab floor in inches are:
15 feet x 12 inches per foot = 180 inches (length)
18 feet x 12 inches per foot = 216 inches (width)

Step 2: Calculate the area of each tile.
The area of each tile is given as 12" x 18" = 216 square inches.

Step 3: Calculate the total area of the lab floor.
The total area of the lab floor is the product of the length and width:
180 inches x 216 inches = 38,880 square inches.

Step 4: Calculate the number of tiles Tristan needs.
Divide the total area of the lab floor by the area of each tile:
38,880 square inches ÷ 216 square inches per tile = 180 tiles.

Therefore, Tristan needs 180 tiles to cover the lab floor, assuming there is no waste.

To determine the number of tiles Tristan needs, we must first convert all the measurements to the same unit.

Given:
Size of each tile = 12" x 18"
Lab dimensions = 15 feet x 18 feet

1 foot = 12 inches (since there are 12 inches in 1 foot)

Converting lab dimensions:
Lab width = 15 feet = 15 x 12 inches = 180 inches
Lab length = 18 feet = 18 x 12 inches = 216 inches

Now let's calculate how many tiles can fit in the lab floor area:
Tile area = Tile width x Tile length = 12 inches x 18 inches = 216 square inches

Lab floor area = Lab width x Lab length
= 180 inches x 216 inches
= 38,880 square inches

To find the number of tiles Tristan needs, divide the total floor area by the tile area:
Number of tiles = Lab floor area / Tile area
= 38,880 square inches / 216 square inches
= 180 tiles

Therefore, Tristan needs 180 tiles to cover the lab floor, assuming there's no waste.