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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. What
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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. What does x - 30 represent in this situation?

User Krhlk
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x-30 represents the rate that the car is traveling, since it is traveling 30 miles slower than the speed of the train, x.
User VishB
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