SOLUTION: landon can climb a certain hill at a rate that is 1.5 mph slower than his rate coming down the hill. If it takes him 4 hours to climb the hill and 168 minutes to come down the hill

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Question 837104: landon can climb a certain hill at a rate that is 1.5 mph slower than his rate coming down the hill. If it takes him 4 hours to climb the hill and 168 minutes to come down the hill, what is his rate coming down?
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
r = rate going down the hill

______________speed___________time______________distance
UPHILL________r-1.5___________4________________%28r-1.5%29%2A4
DOWNHILL_______r_____________168/60=2.8_________r%2A%282.8%29

The division by 60 for downhill is because 60 minutes make 1 hour.
Both directions are the same distance quantity.
highlight_green%28%28r-1.5%29%2A4=r%282.8%29%29

4r-6=2.8r
4r-2.8r=6
1.2r=6
r=6%2F1.2
highlight%28r=5%29