The length of a rectangle is equal to three times it’s width . If the perimeter is equal to 240 feet , what is the length of the rectangle

Answer 1

If the length is three times the width, let us sa

y that the width of the rectangle is X. That means the length would be 3X. The perimeter is found by adding all the sides together. For a rectangle, that means the perimeter (240)=2 ( x+3x).=2*4x=8x. To find x, divide both sides of the equation by 8.

This gives you x=240/8=30. The length is 3x, so 3*30=90.

Answer 2

let the length of the rectangle be x

let the width be y

from the question y= 3x ,

perimeter of the rectangle = 240 ft

the perimeter of a rectangle = 2 ( length + width )

therefore,

240 = 2 (x + 3x)

240 = 8x

x = 240/8

x = 30 feet