Answer:
2 hours 50 minutes
Step-by-step explanation:
Mountain Standard Time is 1 hour earlier than Central Standard Time, so the departure time is equivalent to 6:30 pm in CST.
The time between 6:30 pm and 9:20 pm is 2 hours 50 minutes.
Answer:
The solution is:
Step-by-step explanation:
Given the expression

Solving


so



∵ 
Therefore, the solution is:

Is this a question? Or what is the question if you first said it?
Answer:
Yeah
Step-by-step explanation:
Average speed = (distance final - distance initial)/(time final - time initial)
Average speed = (30-0)km /(100 -0)min = 3/10 km/min
3/10 km/min *60 min/1 h = 180/10 km/h= 18 km/h