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11 November, 21:04

Two cars leave Phoenix and travel along roads 90 degrees apart. If Car 1 leaves 30 minutes earlier than Car 2 and averages 42 mph and if Car 2 averages 50 mph, how far apart will they be after Car 1 has traveled 3.5 hours?

A:230

B:250

C:210

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Answers (1)
  1. 11 November, 21:17
    0
    C. 210 miles.

    Step-by-step explanation:

    If Car 1 left 30 minutes earlier

    than Car 2 therefore Car 2 traveled 3 hours

    compared to Car 1's 3.5 hours

    Car 1 traveled 3.5 x 42 mph = 147 miles

    Car 2 travelled 3 x 50 mph = 150 miles

    The distance between them would be

    √147^2 + 150^2

    = 210
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