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15 August, 11:43

6. Savannah leaves Redlands driving due north at

55 mph. Luke leaves Redlands at the same time

and drives due south at 62 mph. How far apart

are they after 3 hours?

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Answers (1)
  1. 15 August, 14:15
    0
    In this distance-time equation, both people are going in opposite directions. Because of this, we have to add the distances each traveled in order to find the distance between.

    Both people have rates: Savannah is driving at 55 mph; Luke is driving at 62 mph.

    Since the question states that they both drive for 3 hours, all we have to do is multiply both rates by 3.

    55 (3) + 62 (3) = ?

    Multiply:

    165 + 186 = ?

    Add:

    165 + 186 = 351

    After 3 hours, Savannah and Luke are 351 miles apart.

    -T. B.
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