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A student walks and jogs to college each day.She averages 5km/h walking and 9km/h jogging.Tha distance is 8km and she makes the trip in 1 hour. How far does she jog?

  • algebra -

    let her distance walking be x km
    then her distance jogging is 9-x km

    The total of her times walking and jogging is 1 hour

    x/5 + (8-x)/9 = 1
    multiply by 45
    9x + 5(8-x) = 45

    I will let you finish it.

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