Question

The length of a rectangle is 3 times its width. If the perimeter of the rectangle is 48 inches, how do you find the length?

Answer 1

`L=18` inches

Explanation:

Perimeter `P=48`
`L=3w`

`P=2*L+2*w`

`48=2(3w)+2w`
`48=6w+2w`
`48=8w`
`w=48/8`
`w=6`

solve now length `L`

`L=3w=3*6=18`
`L=18`

have a nice day from the Philippines!