Frostbite550 Frostbite550
  • 25-08-2021
  • Mathematics
contestada

the equilateral triangle and the rectangle have the same perimeter.
triangle: 2.5x + 10. rectangle: x +12 + 8x

what is the value of x?
what is the perimeter of the rectangle?

Respuesta :

anasweeney43 anasweeney43
  • 30-08-2021

Answer: x = - 4/13

Step-by-step explanation:

2.5x+10=x+12+8x

10-12 = x+8x-2.5x

-2 = 6.5x

x = -4/13

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