Question

The length of a rectangle is three times its width. The perimeter is at most 112 centimeters What is the greatest possible value for the width?

Answer 1

So maximum width is 14cm

Explanation:

Let length be `L`
Let width be `w`

Given that `L=3w`

Given that perimeter max is 112 cm `=>2L+2w=112`

As `L=3w" then "2L+2w=112" "->" "2(3w)+2w=112`

`=>8w=112`

`w=112/8 =14`