Question

How many 18 square tiles are needed to pave the floor of a patio that measures 18 by 15?

Answer 1

Given:

Dimension of the floor of the patio = 18 ft by 15 ft

Number of square tiles = 18 inches

The floor of he given patio has the shape of a rectangle.

Convert the inch to feet.

Given:

1 foot = 12 inch

`\begin{gathered} 18\text{inches}=(18)/(12)=1.5ft \\ \end{gathered}`

Let's find the number of 18 square tiles that would be needed.

To find the number of 18 square tiles thet would be needed, apply the formula:

`n=\frac{area\text{ of floor}}{\text{area of each tile}}`

To find the area of the floor, apply the area of a rectangle formula:

Area = length x width

Area = 18 x 15 = 270 square feet

Area of each tile = 1.5 x 1.5 = 2.25 square feet

Thus, we have:

`\begin{gathered} n=(270)/(2.25) \\ \\ n=120 \end{gathered}`

Therefore, the number of 18 inch square tiles that are needed is 120

ANSWER:

120