A rectangular table for the dining room has a surface area of 24 square feet. The length is two more feet than twice the width of the table. Find the length and width of the table.

Respuesta :

Answer:

W=3 feet, L=8 feet

Step-by-step explanation:

W=W

L=2W+2

W(2W+2)=24

2W²+2W=24

2W²+2W-24=0, now factor

(2W+8)(W-3)=0

2W+8=0, 2W=-8, w=-4 ; dimension can't be negative

W-3=0, W=3, W = 3 feet

L=2(3)+2 = L = 8 feet

The rectangular table has a width of 3cm and a length of 8cm.

The area of a rectangle = length x width

w = width

length = 2 + 2w

(2 + 2w) x w = 24

To determine the dimensions, take the following steps:

expand the bracket

2w + 2w² = 24

2w + 2w - 24 = 0

2w(w + 4) ; -6(w + 4)

w is either 6/2 = 3

or - 4

Dimensions cannot be negative so the width is 3

Length = 2 + 2(3)

2 + 6 = 8 feet

To learn more about how to calculate the area of a rectangle, please check: https://brainly.com/question/11687957

Factorise the above expression