Thursday

December 18, 2014

December 18, 2014

Posted by **Marlunaray** on Monday, December 19, 2011 at 6:31pm.

- Math -
**Reiny**, Monday, December 19, 2011 at 7:35pmperimeter = 2(75+135) = 420

number of 4 ft lengths = 420/5 = 84

so we need 84 posts

(look at the first length of 75 feet. Let's put a post at the**end**of each 5 ft stretch, that would take take 15 posts. Notice that the beginning of that side still has no post, but the beginning of the 135 ft side already has a post, so for this side in the same way we need 27 post, another 15 for the next side and finally 27 for the last side.

Notice that the last post filled in our missing starting point)

**Answer this Question**

**Related Questions**

Math - Jeff is putting a fence around his rectangular yard. It is 50 feet long ...

math - a post is put every 6 feet along a rectangular fence that is 42 feet long...

Algebra - A fence needs to be built around a field that is 100 feet long and 50 ...

4th grade - bertrand is building in the form of a rectangle. he knows that the ...

math - Walterwants to replace some fence on his farm the wooden rail fence cost ...

6th grade math - You are putting up a 60 foot long fence in your backyard. ...

math - Ms. Jacobs is planning to put a fence around a rectangular part of her ...

Calc 1 - An 8 foot tall fence seperates Larry's yard from Evan's yard.The fence ...

Math - A fence is 20 ft long. it has posts at each end and at every four feet ...

math - A fence post is to be along side of a lot measuring 114 feet. 19 fence ...