S sandyk109 New member Joined May 7, 2007 Messages 15 Jul 30, 2007 #1 Kawn hiked up a hill at 4km/h and back down at 6 km/h. His total hiking time was 3h. How long did the trip up the hill take him? Please show steps. Thanks
Kawn hiked up a hill at 4km/h and back down at 6 km/h. His total hiking time was 3h. How long did the trip up the hill take him? Please show steps. Thanks
skeeter Elite Member Joined Dec 15, 2005 Messages 3,216 Jul 30, 2007 #2 distance uphill = distance downhill let t = time uphill in hours, then 3-t = time downhill in hours since rate*time = distance ... 4t = 6(3-t) solve for t, the time in hours uphill.
distance uphill = distance downhill let t = time uphill in hours, then 3-t = time downhill in hours since rate*time = distance ... 4t = 6(3-t) solve for t, the time in hours uphill.
