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Mathematics 19 Online
OpenStudy (anonymous):

2 buses leave my retriceat the same time & travel in opposite directions. One bus averages 55 mi/h and the other averages 45 mi/h. When will they be 400 miles apart? (legit question)

OpenStudy (anonymous):

55t + 45 t = 400 100t = 400 t = 4 In 4 hours.

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