corteznayely14 corteznayely14

21-02-2020
Mathematics

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the length of a rectangle is 4cm less than twice it’s width. the perimeter of the rectangle is 34 cm. what are the dimensions of the rectangle

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saijuchacko saijuchacko

21-02-2020

Answer:

w=width

l= 2w-4

perimeter of a rectangle = 34

34 = 2(2w-4+w)

34 = 4w-8+2w

34 = 6w-8

6w = 34+8

6w = 42

w = 42/6

width = 7

length = 2w-4

= 2(7)-4

= 14-4

= 10

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