SOLUTION: suppose you hike up a hill at 4 km/h. You hike back down at 6 km/h. Your hiking trip took 3 hours. How much time did it take you to hike up the hill?
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Question 232162: suppose you hike up a hill at 4 km/h. You hike back down at 6 km/h. Your hiking trip took 3 hours. How much time did it take you to hike up the hill?
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
D=RT
D=4X
D=6(3-X)
4X=6(3-X)
4X=18-6X
4X+6X=18
10X=18
X=1.8 HOURS FOR THE TRIP UP THE HILL
D=4*1.8=7.2 MILES.
PROOF:
7.2=6(3-1.8)
7.2=18-10.8
7.2=7.2
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