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During the same journey, Stuart drove x miles for 2 hours, and 200 miles for 3 hours. Find x
if the average speed for the entire journey is 70 miles per hour

Respuesta :

sqdancefan

Answer:

  x = 150

Step-by-step explanation:

The relationship between time, speed, and distance is ...

  speed = distance/time

  70 mi/h = (200 +x mi)/(3 +2 h)

  350 mi = 200 +x mi

  150 mi = x mi

Stuart drove 150 miles in 2 hours to make the average speed 70 mi/h.

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