Megan drove from her house to work at an average speed of 45 miles per hour. The drive took her20 minutes. If the drive home took her 30 minutes and she used the same route in reverse, what was her average speed going home?

Answer: Speed = distance/time   distance = 45 miles  time = 30 minutes = 1/2 hours  therefore speed = 90 mph   Question 2   distance = speed x time   speed = 7.5  time = 15 minutes = 1/4 hours  therefore distance = 15/4 miles   time = distance/speed   distance = 15/4 miles  speed = 8  time = (15/4)/8 = 15/32 hours Step-by-step explanation: