Given:
speed = distance / time
walking: 3 miles per hour
running 5 miles per hour
for a total of 3 hours.
3t = 5(3-t)
3t = 15 - 5t
3t + 5t = 15
8t = 15
t = 15/8
t = 1 7/8
7/8 * 60 mins = 52.50 minutes
t = 1 hour and 52.5 minutes
It took Stu 1 hour and 52.5 minutes to hike the trail one way.
The speed would be 158.4fps and the parachutist would fall 2,376 feet during 15 seconds.
Answer: 49/9
Step-by-step explanation:
9x5=45
45+4=49
I think you forgot to add the cord picture?
