Fence posts are 100 ft. apart. How many fence posts are required for a ____ fence that is ___ ft long?

Question

Ohkay, once again, Im doing homework and Im stuck. I also have a headache [a freakin bad one!] so just bear with me.

3. A. Fence posts are 10 feet apart. How many fence posts are required for a straight fence that is 100 feet long?

B. What if the fence is circular?

Please make your answers well-detailed. Thanks!! :]

**Note: My teacher who gave me this homework said to remember "Posts are 3 pieces of wood put together" Keep that in mind please!!

Answer 1

A. Since posts are 10 feet apart and you need 100 feet of fencing, there will be 11 posts (one every 10 feet and one at the beginning).



B. If the fence is circular, you won't need the one at the beginning, so there will be 10 posts.



Posts being made of 3 pieces of wood is completely irrelevant.

Answer 2

Posts aren't three pieces of wood. A section of fence is made up of posts with runners between them. For a straight fence, you need to have one more post than runners (because otherwise one end of the fence has a runner lying with one end on the ground). For a circular fence, you use the same number of posts as runners.



In this case, the runners are 10 feet, so you need (100/10) to cover 100 feet. For a straight fence, you need (100/10)+1 = 11 posts.



For a circular fence, you don't need the extra post, so it's (100/10)=10 posts.

Answer 3

11.

100/10 is 10, but you also need an extra one at the very end



If the fence is circular, the last one is the same as the first one, so 10.



The number of pieces of wood needed to make one post is irrelevant. The question is not about how many pieces of wood, but about the number of posts, whether they are made of 3 pieces of wood or not.

That information was meant to confuse you and force you to think. Evidently, your headache is preventing that from happening. Make a bit more effort next time.

Answer 4

Depends on how long you want the fence to last. If your ground freezes where you live, I'd give it two winters - if you're lucky. If not, maybe 3 or 4. For along lasting fence, posts should be at least 3-4 feet into the ground and cemented in a sono tube.

Answer 5

A. 11

B. 10

Answer 6

A you need 11 because each end needs one



B i would say ten because your ends are put together and you only need one post for that

Answer 7

"Posts are 3 pieces of wood put together"



no they are not. She explained something else to you that you aren't sharing or she was on meth



Is she counting the rails as posts?