As apart of her physical fitness training, Kaylee cycled at 30km/h and then jogged at 8 km/h. She spent 2 hours working out and covered a di

Question

As apart of her physical fitness training, Kaylee cycled at 30km/h and then jogged at 8 km/h. She spent 2 hours working out and covered a distance of 49 km. How long did Kaylee spend at each activity?

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Amity 3 years 2021-09-05T07:08:41+00:00 1 Answers 17 views 0

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  1. thucuc
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    2021-09-05T07:09:42+00:00
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    Answer:

    for cycling, time is 1.5 hours

    for hogging time is 0.5 hour.

    Step-by-step explanation:

    speed of cycling = 30 km/h

    speed of jogging = 8 km/h

    total time  = 2 hrs

    total distance, D = 49 km

    Let the time for cycling is t, so that time time for jogging is 2 – t .  

    distance = speed x time

    49 = 30 x t + 8 (2 – t)

    49 = 30 t + 16 – 8 t

    33 = 22 t

    t = 1.5 hour

    So, time for cycling is 1.5 hours and time for jogging s 0.5 hr.

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