Answer:
To calculate the number of stairs required, we need to first determine the total vertical distance we need to cover. Given that the distance between the floors is 9 feet or 108 inches, and the desired slope is not specified, let's assume a standard slope of 7 inches for each step.
Using this slope, we can calculate the number of stairs required as follows:
Number of stairs = Total vertical distance ÷ Height of each step
Number of stairs = 108 inches ÷ 7 inches per step
Number of stairs = 15.43
Since we can't have a fraction of a step, we need to round up to the nearest whole number. Therefore, we'll need 16 stairs in total.
To calculate the horizontal distance from the top of the stairs to the bottom, we need to know the run of each step, which is not given. Let's assume a run of 10 inches for each step, which is a common standard.
Then, the total horizontal distance from the top of the stairs to the bottom can be calculated as follows:
Horizontal distance = Number of steps × Run of each step
Horizontal distance = 16 steps × 10 inches per step
Horizontal distance = 160 inches or 13.33 feet
Therefore, we would need 16 stairs to cover a distance of 9 feet between the floors, with a slope of 7 inches for each step, and the horizontal distance from the top of the stairs to the bottom would be 13.33 feet assuming a run of 10 inches for each step