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Julienne
Julienne asked in Education & ReferenceHomework Help · 6 years ago

Math Homework!?

Question: Susan pedals her bike at a speed of 18k/h. Andrew pedals in the opposite direction at a speed of 16 km/h. How far apart are they after 45 minutes? Leave your answer in centimetres.

4 Answers

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  • david
    Lv 7
    6 years ago

    18+16 = 34

    34 X (45/60)

    = 34 X (3/4)

    = 51/2 = 25.5 km

    if you want cm multiply by 100000

  • Daniel
    6 years ago

    Do 18 times 45/60 , because if they are only 45 out and they go that far in an hour you have to do fracctions, then do the same for 16 then add them

  • Bill
    Lv 7
    6 years ago

    Since they are going in opposite directions, their speed relative to each other is 34 km/h.

  • ?
    Lv 7
    6 years ago

    (18km/hr + 16km/hr) x (45min / 60 min/hr) / 1000m/km / 100cm/m = cm

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