At 6 A.M., Dylan and his neighbor, Mickey, drove in their cars to a city that was 300 miles away from their neighborhood. When Dylan reached the city, Mickey had 50 miles to go. He finally completed the trip 48 minutes later. A) How long did it take Mickey to drive to the city? B) What was Dylan's driving speed in mph?
A. V = 50mi/(45/60)h = 62.5 mph.
d = V*t = 300. t = 300/62.5 = 4.8h.
B. t = 4.8h - 48min. = 4.8h - 0.75h = 4.05h.
d = V*t. d = 300 mi., t = 4.05h., V = ?.