derek planted a garden in the shape of a square 32 feet on each side. The garden has a stream on one side, but he plans so build a fence on the other three sides. If he puts a post every 8 feet, how many posts will he need?

5 posts on the side facing the stream, and 4 on each of the other sides.

i have the same problem but with a dude named jeffery

11....i think hey mathmate are u doing 4+4+3?????

To find out how many posts Derek will need, we need to calculate the perimeter of the garden and then divide it by the spacing between each post.

The perimeter of a square is given by the equation: perimeter = 4 * side length.

In this case, the side length of the square garden is 32 feet.

So, the perimeter of the garden is: perimeter = 4 * 32 = 128 feet.

Derek plans to put a post every 8 feet, so we need to divide the perimeter by 8 to find the number of posts.

Number of posts = perimeter / spacing between posts = 128 / 8 = 16.

Therefore, Derek will need 16 posts to build the fence on the three sides of the garden.