Mathematics, 29.10.2020 09:10 megamorph

Tina is training for a biathlon. To train for the running portion of the race, she runs 8 miles each day over the same course. The first 3 miles of the course is on level ground, while the last 5 miles is downhill. She runs 4
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 8 miles each...

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