Question

Pablo wants to replace a glass window in his restaurant. The window is in the shape of a square. Its side lengths are 8 feet. Suppose glass costs $6 for each square foot. How much will the glass cost to replace the window?

Answer 1

$384

Explanation

Step 1

find the area of the glass

the area of a square is given by:

$\text{Area}=Side^2$

Let

side=8 ft

replace

$\begin{gathered} \text{Area}=Side^2 \\ \text{Area}=(8ft)^2 \\ \text{Area}=64\text{ square f}eet \end{gathered}$

Step 2

to find the total cost, multiplied the area by the unit price

$\text{total cost= area}\cdot unit\text{ rate}$

Let

area= 64 square feet

unit rate=6 dollars/ square foot

replace

$\begin{gathered} \text{total cost= area}\cdot unit\text{ rate} \\ \text{total cost= 6}4ft^2\cdot6\frac{dolars}{ft^2} \\ \text{total cost=384 dollars} \end{gathered}$

so, the answer is $384