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Mathematics, 02.08.2019 10:00 ksawyer745
Atrain averages a speed of 90 miles per hour across the plains and 37.5 miles per hour through the mountains. if a trip of 300 miles took 3 hour and 48 minutes, how many miles of it was through the mountains?
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Atrain averages a speed of 90 miles per hour across the plains and 37.5 miles per hour through the m...
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