Final answer:
To determine the number of 8"x16" openings needed for a 2,250-square-foot crawlspace, the area of an opening in square feet (⅑ sq ft) is calculated and the total area is divided by this number, resulting in 4,500 openings required.
Step-by-step explanation:
To calculate the number of standard 8"x16" openings needed for a building with a 2,250-square-foot crawlspace, we need to first convert the dimensions of the openings from inches to feet to ensure consistent units. We do this by dividing the dimensions in inches by 12, since there are 12 inches in a foot.
Therefore, an 8" wide by 16" long opening is equivalent to ½ foot by ⅓ feet (8/12 feet by 16/12 feet). The area of one opening is then ½ foot × ⅓ feet = ⅑ square feet.
To find the number of openings needed, divide the total crawlspace area by the area of one opening:
Total openings = Total crawlspace area / Area of one opening
Total openings = 2,250 sq ft / ⅑ sq ft
Calculating this gives us:
Total openings = 2,250 / ⅑
Total openings = 2,250 × 2 (since ⅑ is 1 divided by 2)
Total openings = 4,500
Hence, you would need 4,500 standard 8"x16" openings for a building with a 2,250-square-foot crawlspace.