Question

the perimeter of a rectangle is 40 m. The Length
of the rectangle is 4 m less than 5 times its
breadth. Set up an equation to find the length of
the rectangle.
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Answer 1

Answer:

let breadth = x

length = 5x - 4

perimeter = 2(l+ b)

2 ( 5x - 4 + x ) = 40

2 ( 6x - 4 ) = 40

12x - 8 = 40

12x = 40 + 8

12 x = 48

x = 48 / 12

x = 4

breadth = 4 m

length = 5* 4 - 4

20 - 4

16m

area = l* b

16 * 4

64m^2

Step-by-step explanation: