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Firlakuza [10]
3 years ago
7

The perimeter formula for a rectangle is 21+ 2w, where

Mathematics
2 answers:
Zinaida [17]3 years ago
6 0

Answer:

20x+6

Step-by-step explanation:

The perimeter is

P= 2l + 2w

P = 2( 8x-1) + 2(2x+4)

Distribute

   = 16x-2 + 4x+8

Combine like terms

  = 20x+6

enyata [817]3 years ago
6 0

Answer:

Perimeter = 20 x + 6

Step-by-step explanation:

The Perimeter of rectangle = 2l + 2w

Where,

  • l is length which is (8x - 1) in
  • w is the width which is (2x + 4 ) in

Perimeter of rectangle = 2(8x -1)+ 2(2x + 4)

using Distributive property

Perimeter = 16 x - 2 + 4x + 8

Combine like terms

Perimeter = 16 x + 4x - 2 + 8

Perimeter = 20 x + 6

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4 0
3 years ago
8(1 - 5x) + 5 = -2 + 5x
andriy [413]
X=1/3
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