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PLease help i dont know how to do this please explain too!!

PLease help i dont know how to do this please explain too!!-example-1
User Goblin
by
7.9k points

2 Answers

3 votes

Given:-

  • Length = ( 3x - 1 ) inches

  • Breadth = ( x + 2 ) inches

  • Perimeter of rectangle = 52 inches

To find out:-

Find the value of x.

Formula used:-

Perimeter of rectangle = 2 ( l + b )

Solution:-

We know that,

Perimeter of rectangle = 52 [ Given ]

⇒ 2 ( l + b ) = 52

⇒ 2 ( 3x - 1 + x + 2 ) = 52

⇒ 2 ( 4x + 1 ) = 52

⇒ 8x + 2 = 52

⇒8x = 52 - 2

⇒ 8x = 50

⇒ x = 50/8

⇒ x = 6.25 inches

User Soufiaane
by
8.0k points
3 votes

Answer:

6.25

Explanation:

The perimeter is the sum of the lengths of the sides.

For a rectangle, it's the two widths plus the two heights.

P = 2W + 2H

Plugging in values:

52 = 2(3x − 1) + 2(x + 2)

52 = 6x − 2 + 2x + 4

52 = 8x + 2

50 = 8x

x = 6.25

User Zayid Mohammed
by
8.7k points

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