Question

100 PTS

The perimeter of a rectangular field is 300 yards. If the length of the field is 81 yards, what is its width?

Answer 1

69 yards

Explanation:

Perimeter = 2(length + width)

300 = 2(81 + width)

150 = 81 + width

width = 69

Answer 2

Explanation:

Step 1: Find the width

`P = 2(L * W)`

`300 = 2(81 * W)`

Distribute

`300 = 2(81 * W)`

`300 = (2 * 81) + 2W`

Subtract 162 from both sides

`300 = (2 * 81) + 2W`

`300- 162 = 162 - 162 + 2W`

`138 = 2W`

Divide both sides by 2

`138 / 2 = 2W / 2`

`69 = W`

Answer: The width is 69 yards