The length of a rectangle is twice its width. If the perimeter is 84 feet, what is the width of the rectangle

Answer 1

2 times the lenght and 2 times the width (if you picture a rectangle) is what perimeter means

Width = X

Lenght is twice width so is 2x

The Perimeter is 2(X) + 2(2x) = 84

simplify that 6x = 84

so x must be 14

Let's show that is the answer

width os X or 14 and lenght is twice width so is 28

2*14 + 2* 28 = 84

ALL GOOD