Question

the perimeter of a rectangle is given by the formula p=2l+2w. find the width of a rectangle whose length is 35 and perimeter is 84 inches

Answer 1

`w = 17in`

Explanation:

Given:

`p=2l+2w`

`l=35in`

`p=84in`

We know these values, so let's plug them into the equation and solve for
`w`.

`p=2l+2w`

`84=2(35)+2w`

`84=70+2w`

`14=2w`

`w=7`