andsteve1300 andsteve1300
  • 15-02-2022
  • Mathematics
contestada

The perimeter of a rectangle is 76. The length is 20 more than the width. Find the width and length.

Respuesta :

pandaen932
pandaen932 pandaen932
  • 15-02-2022

Answer: The width is 9 units and the length is 20 units

Step-by-step explanation:

Perimeter is length + length + width + width, (P = 2l + 2w)

76 = 2(w+20) + 2w

76 = 2w + 40 + 2w

76 = 4w + 40

Subtract 40 on both sides

36 = 4w

Divide both sides by 4

9 = w

That means the length is 29 and the width is 9. To check out work, add 29+29+9+9 to get 76. Our answer is correct.

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