sierra81 sierra81
  • 16-04-2017
  • Mathematics
contestada

Missy and Randy started at opposite ends of Otter Creek Trial and hiked toward each. Missy walked at 2 miles per hour while Randy walked at 3 miles per hour. Otter Creek Trial is 3.5 miles long. How long will they hike before they meet?

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irspow
irspow irspow
  • 16-04-2017
M=-3.5+2t, R=-3t  when they meet M=R so

-3.5+2t=-3t

-3.5+5t=0

5t=3.5

t=0.7 hrs  (42 minutes)
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