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Louie drives his car 270 kilometers in the same time that derek drives his lancer 250 kilometers, if louie averages 4 kilometers per hour faster than derek, find their rates

Answers

  • Réponse publiée par: cleik

    Iouie: 54 kph

    Derek: 50 kph

    Step-by-step explanation:

    Distance:

    Iouie: 270 km

    Derek: 250 km

    270 km - 250 km = 20 km

    Iouie: x + 20

    Derek: x

    x = 250

    Time:

    20 km ÷ 4 kph = 5 hours

    Rate:

    Rate = Distance ÷ Time

    Iouie: (x + 20) ÷ 5 = 1/5 x + 4

    Derek: x ÷ 5 = 1/5 x

    x = 250

    1/5 x = 50

    Iouie: 50 kph + 4 kph = 54 kph

    Derek: 50 kph

    To check:

    Distance = Rate × Time

    Iouie: 54 kph × 5 hours = 270 km

    Derek: 50 kph × 5 hours = 250 km

    54 kph - 50 kph = 4 kph

  • Réponse publiée par: girly61

    answer:

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    step-by-step explanation:

  • Réponse publiée par: tayis
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Louie drives his car 270 kilometers in the same time that derek drives his lancer 250 kilometers, if...