Question

A rectangular dog pen has an area of 384 sq yd. The width is 24 yd. How much does it cost to fence it if the cost for fencing is $9 per foot?

Answer 1

$2160

Explanation:

Area of a rectangle = Length * Width

A = L * W

Divide both sides by width

W/(A = L * W)/w

`(A)/(W) = L`

Plug in values

`(384)/(24) =16`

Multiply Length and width to find perimeter

2W + 2L = P

plug in values

2(24) + 2(16) = 80

Multiply perimeter by cost per foot

1yd = 3ft

80yd * 3ft = 240ft

240ft * $9 = $2160