krawding4 krawding4
  • 13-09-2017
  • Mathematics
contestada

You started on a bike trip, riding at a rate of 9 miles per hour. Your friend left one hour later and rode at the rate of 12 miles per hour. How long did it take your friend to catch up with you?

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lilacajplays
lilacajplays lilacajplays
  • 16-09-2017
You're 9 miles ahead when the 2nd bike starts.
His speed wrt you is 3 mph (12-9).
9/3 = 3 hours
I hope i helped you
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