Question

The width of a rectangle is 3/4 its length. The perimeterof the rectangle is 420ft. What is the lenght, in feet, of the rectangle

Answer 1

The length = 120 feet

Explanation:

Givens

Let the length = x

Let the width = 3/4 x

Perimeter = 420 feet

Formula

Perimeter = 2*L + 2*w

Solution

2*x + 2(3/4) x = 420

2x + 1.5x = 420

3.5 x = 420

x = 120