Physics, 20.07.2019 13:00 hannahkharel2
Tina is training for a biathlon. to train for the running portion of the race, she runs 9 miles each day over the same course. the first 4 miles of the course is on level ground, while the last 5 miles is downhill. she runs 2 miles per hour slower on level ground than she runs downhill. if the complete course takes 1 hour, how fast does she run on the downhill part of the course?
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Tina is training for a biathlon. to train for the running portion of the race, she runs 9 miles each...
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