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17 votes
Please give the best answer you can, short but the right answer, and thank you!

60 points by the way!

Please give the best answer you can, short but the right answer, and thank you! 60 points-example-1

2 Answers

9 votes
x=4
5x+5x+x+x-6=42
12x=42+6
x=4
User Dalibor Frivaldsky
by
5.1k points
9 votes

Answer:

x = 4

Explanation:

Let

  • the length = 5x
  • the width = x - 3

Perimeter : 2( length + width)

Solve:

  • 2(5x + x - 3)
  • 2(6x - 3)
  • 12x - 6

The perimeter is given as 42 inches

So, 12x - 6 must equal 46 inches

Solve:

  • 42 = 12x - 6
  • 48 = 12x
  • x = 4


\boxed{\text{x=4 inches}}

-Chetan K

User Reker
by
4.8k points