A plate glass window measures 5 ft by 8 ft. If glass costs $6 per square foot, how much will it cost to replace the window?
To find the area, multiply the length times the width:
5 * 8 = 40 square feet
Multiply to find the cost per square foot.
80
To find the cost of replacing the window, we need to calculate the area of the window and then multiply it by the cost per square foot.
First, let's calculate the area of the window:
Area = Length x Width
Given that the length is 5 ft and the width is 8 ft:
Area = 5 ft x 8 ft = 40 square feet
Now that we know the area of the window is 40 square feet, we can multiply it by the cost per square foot of glass, which is $6:
Cost = Area x Cost per square foot
Cost = 40 square feet x $6 per square foot
Cost = $240
Therefore, it will cost $240 to replace the window.