Problema Solution

Juan can run a three-mile race in 21 minutes.If he can maintain this speed,

how many minutes would it take for him to run 8 miles? Show all work.

Answer provided by our tutors

Speed = distance/Time

         = 3/21 

          = 1/7 miles per minute

To run 8 miles,

Time = Distance/Speed

        = 8/(1/7)

         = 56 minutes

Hence, it would take 56 minutes for him to run 8 miles.