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The perimeter of a rectangle is 72 meters. The width of the rectangle is 4 meters less than its length. Find the length and the width of the rectangle

Respuesta :

zarampa

Answer:

length = 20 meters

width = 16 meters

Step-by-step explanation:

72 = 2(a+b)

a = b-4

a = width

b = length

then:

72 = 2((b-4)+b)

72/2 = b-4+b

36 = 2b - 4

36 + 4 = 2b

40 = 2b

b = 40/2

b = 20

a = b - 4

a = 20 - 4

a = 16

Check:

72 = 2(20+16)

72 = 2*36

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