Tim and Mia have 8 hours to spend on a mountain hike. They can walk up the trail at an average of 2mph and can walk down at an a
verage of 3 mph. How long should they plan to hike uphill before turning around?
1 answer:
Answer:
4.8 hours
Step-by-step explanation:
Let the time taken to hike uphill be T
Let the time taken taken to hike downhill = 8 -T
The average speed of walking up = 2 mph
Average speed of walking down = 3mph
Distance hiked uphill = Distance hiked downhill
Speed = distance /time
Distance = Speed * Time
2T = 3(8 -T)
2T = 24 - 3T
2T + 3T = 24
5T = 24
T = 24/5
T= 4.8 hours
Time taken to hike uphill = 4.8hours
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