Question

. The perimeter of a rectangle is 120 feet. The length of the rectangle is twice the width. Find the width of the rectangle. *

Answer 1

Width = 20 ft

Step-by-step explanation:

Let us call w the width and l the length of the rectangle, then we know that

`2(w+l)=120`

in other words, the perimeter is 120 ft.

Furthermore, we also know that the length of the rectangle is twice the width

`l=2w`

substituting this value into the first equation gives

`2(w+2w)=120`
`2(3w)=120`
`6w=120`

Finally, dividing both sides by 6 gives

`w=(120)/(6)`
`w=20`

Hence, the width of the rectangle is 20 ft.