need help
upright posts are to be placed at 9 inch intervals on 3 sides of a deck which measures at a total of 36 ft. How many post are needed.
36/3 = 12 am I on the right track?
yes, but there's a pole on each end.
12 * 12 = 144 inches on each side.
144/9 = 16
(16*3)+2 = ?
Yes, you are on the right track. However, you missed one important detail in the question. The upright posts are to be placed at 9-inch intervals, not at 9 feet intervals. So, we need to convert the measurements to the same unit before proceeding.
Since 1 foot is equal to 12 inches, the total length of the deck in inches is:
36 ft * 12 inches/ft = 432 inches.
Now, we can divide the total length of the deck by the 9-inch interval to determine the number of posts needed:
432 inches / 9 inches/post = 48 posts.
Therefore, you will need a total of 48 posts to be placed at 9-inch intervals on 3 sides of the deck.
Yes, you are on the right track. To determine the number of upright posts needed, you need to calculate the number of intervals between each post.
In this case, you mentioned that the posts are to be placed at 9-inch intervals, and the deck measures a total of 36 ft.
To convert the length of the deck to inches, you can multiply it by 12 (since there are 12 inches in a foot):
36 ft * 12 in/ft = 432 inches
Now, to find the number of intervals, which is the same as the number of posts needed, divide the total length of the deck (in inches) by the interval distance:
432 in / 9 in/interval = 48 intervals
So, you would need 48 upright posts for the three sides of the deck.