A roof is 85 squares in area and 1/8th of the roof is left to complete. What area has been completed so far?

A roof is 85 squares in area and 1/8th of the roof is left to complete. What area has been completed so far?

• A. 5,000 sq. ft.
• B. 7,438 sq. ft.
• C. 10,000 sq. ft.
• D. 12,568 sq. ft.

Answer: (B)

To determine the area of the roof that has been completed, we start by knowing the total area of the roof is 85 squares. One square in roofing terminology is equivalent to 100 square feet, so the total area of the roof can be calculated as: 85 squares × 100 sq. ft./square = 8,500 sq. ft. If 1/8th of the roof is left to complete, we first need to find out what that portion is. To find 1/8th of the total area, we calculate: 8,500 sq. ft. ÷ 8 = 1,062.5 sq. ft. This means that 1,062.5 sq. ft. of the roof remains unfinished. To find out how much of the roof has been completed, we subtract the unfinished area from the total area: 8,500 sq. ft. - 1,062.5 sq. ft. = 7,437.5 sq. ft. Typically, such values in construction and roofing might be rounded to a more usable figure, leading to the approximate completed area being represented as 7,438 sq. ft. This helps clarify that the second choice aligns with the calculated completed

To determine the area of the roof that has been completed, we start by knowing the total area of the roof is 85 squares. One square in roofing terminology is equivalent to 100 square feet, so the total area of the roof can be calculated as:

85 squares × 100 sq. ft./square = 8,500 sq. ft.

If 1/8th of the roof is left to complete, we first need to find out what that portion is. To find 1/8th of the total area, we calculate:

8,500 sq. ft. ÷ 8 = 1,062.5 sq. ft.

This means that 1,062.5 sq. ft. of the roof remains unfinished. To find out how much of the roof has been completed, we subtract the unfinished area from the total area:

8,500 sq. ft. - 1,062.5 sq. ft. = 7,437.5 sq. ft.

Typically, such values in construction and roofing might be rounded to a more usable figure, leading to the approximate completed area being represented as 7,438 sq. ft.

This helps clarify that the second choice aligns with the calculated completed