Question

The perimeter of rectangle living room is 40 m the living room is 10 m wide what is the length of the living room

Answer 1

10

Explanation:

i got it right

Answer 2

Width of the room = 5 meters

Explanation:

the rectangular living room is calculated as length * width

The area is given to be equal to 40 sq. meters (area = 40 sq. meters)

Let the width = x meters

Length = X+3 meters

Area = Length * Width

40 = X * (X+3)

40 = X^2 + 3X

We solve this quadratic equation

So x = 5 or x= -8

Width cannot be negative, so we reject x =-8

So x = 5 is the answer