a math problem???

Question

a play yard is 21 ft by 22 ft. A fence is to be built around the yard. How many feet of fencing will be needed? If fencing costs $4.70 a foot, what will be the cost of the fence?

ok can anyone explain that question to me.....i really dont get it....do i have to find the area or perimeter?? and then do i have to multiply that number to the cost of 1 foot fence?

Answer 1

Fencing is a perimeter because you want the fence to go around the outside.

21 + 21 + 22 + 22 = total number of feet

Find the cost by multiplying total number of feet by $4.70.

Answer 2

You have to find the perimeter. Imagine the yard as a rectangle with a 21 ft width and a 22 ft length. The perimeter will be P = 2*w + 2*l. Then multiply by the cost per foot.

Answer 3

Does a fence get put on the perimeter, or is it layed down on every square foot of the yard?

If one foot of fence costs $4.70, how much does two feet of fence cost?

Use your brain for something other than filling up the space in your skull.

Answer 4

fencing is done on boundaries of playing yard so you need to find perimeter of rectengular play yard.
perimeter=2(L+B)
= 2(22+21)
=2x43
=86 square feet
there cost of fencing= perimeterx rate of fencing
=86x$4.70
=$404.20

Answer 5

u have 2 do 21+21+22+22

Answer 6

answer $404.20
you have a square 2 sides ar 21ft and the other 2 are 22 ft

21+21+22+22= 86ft
86x$4.70=$404.20

Answer 7

You would need 86 total feet of fencing to cover the yard. The price would be $404.20

Answer 8

You need to find the perimeter, not the area. Then take the perimeter and multiply it by the cost per foot.

Answer 9

86 feet around 404 dollars

Answer 10

this question is like 2nd grade though :)

(21x2)+(22x2)=86ft.

if its costs 4.70 a foot....86x4.70 = $404.20