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Mathematics, 09.03.2021 19:30 edgartorres5123

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.

What does x - 30 represent in this situation?

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