The length if a rectangle is 3cm greater than it's width. The perimeter is 24 cm. what are the dimensions if a rectangle?

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asked Feb 3, 2018 215k views

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Hesham Attia · Answer 1 · 2018-02-09T21:06:50+0000

Perimeter= 2w+2l

24=2w+2l
l=w+3

Substitute for l
24=2w+2(w+3)
24=2w+2w+6
24=4w+6
18=4w
4.5=w

Plug in w value
l=4.5+3
l=7.5

Final answer: length=7.5 cm, width=4.5 cm

The length if a rectangle is 3cm greater than it's width. The perimeter is 24 cm. what are the dimensions if a rectangle?

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