Answer: Juwan spent 4 hours going to the park and 5 hours returning from the park.
Explanation:
Let t represent the time it took Juwan to travel to the park.
Juwan went to the park traveling 25 mph.
Distance = speed × time
Distance travelled while going to the park is
25 × t = 25t
Juwan returned home traveling 20 mph. If the total trip took 9 hours, it means that Juwan spent (9 - t) hours in returning home. Distance travelled while returning home is
20(9 - t) = 180 - 20t
Since the distance travelled is the same, it means that
25t = 180 - 20t
25t + 20t = 180
45t = 180
t = 180/45 = 4 hours
Time spent in going to the park is 4 hours.
Time spent in returning from the park is 9 - 4 = 5 hours