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6 August, 18:59

Mary is traveling cross country on a road trip. So far, Mary has traveled 200 miles in her car and 200 miles by train. The car traveled at a

rate that was 30 miles per hour slower than the train.

Mary modeled the total time for her trip with the following expression.

200 + 20030

What does x - 30 represent in this situation?

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Answers (2)
  1. 6 August, 20:12
    0
    i dont know i think it is 11?! srry if im wrong
  2. 6 August, 21:03
    0
    x-30 is the equation used to determine the car's speed in mph.
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