Salirrosasnicol
Salirrosasnicol Salirrosasnicol
  • 24-10-2018
  • Mathematics
contestada

Pls help me with this one

Pls help me with this one class=

Respuesta :

mike12663 mike12663
  • 24-10-2018

8x>420

x> or =52.5

52.5 mph average speed

easy stuff kid

Answer Link
loitzl9006 loitzl9006
  • 24-10-2018

Answer:

[tex]v\ge52.5 mph[/tex]

Step-by-step explanation:

[tex]s=420m\\ t=8h\\ v=?\\  t\ge \frac sv \\ 8\ge \frac{420}v \ \ \ \ |\cdot v\\ 8v\ge 420\ \ \ |:8\\ v\ge \frac{420}8\ \to \ v\ge 52.5 mph[/tex]


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