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The length of a rectangle is two more than twice its width, and the ar

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Math Expert
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Joined: 02 Sep 2009
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The length of a rectangle is two more than twice its width, and the ar  [#permalink]

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New post 28 Jan 2019, 04:05
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

77% (01:38) correct 23% (02:14) wrong based on 20 sessions

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Joined: 15 Sep 2013
Posts: 14
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Re: The length of a rectangle is two more than twice its width, and the ar  [#permalink]

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New post 28 Jan 2019, 05:14
D. 28. let x be width; Area = 40 = x * (2x+2) ; thus x = 4; Perimeter = 2x + 2(2x+2) = 28
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Re: The length of a rectangle is two more than twice its width, and the ar  [#permalink]

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New post 28 Jan 2019, 06:27
Bunuel wrote:
The length of a rectangle is two more than twice its width, and the area of the rectangle is 40. What is the rectangle’s perimeter?

A. 14
B. 18
C. 24
D. 28
E. 32


l=2w+2
(2w+w)*w=40
w=4,-5
w=4
l=10
so 2(10+4) = 28
IMO D
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Re: The length of a rectangle is two more than twice its width, and the ar   [#permalink] 28 Jan 2019, 06:27
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The length of a rectangle is two more than twice its width, and the ar

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