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6. at 1: 30 p. m., an airplane leaves tucson for baltimore, a distance of
2240 miles. the plane flies at 280 miles per hour. a second airplane
leaves tucson at 2: 15 p. m., and is scheduled to land in baltimore 15
minutes before the first airplane. at what rate must the second
airplane travel to arrive on schedule?
inova york at the same time, one traveling north, the other