Tina Is Training for a Biathlon

Short Answer

Tina is training for a biathlon. To train for the running portion of the race, she runs 5 miles each day, over the same course. The first 2 miles of the course is on level ground, while the last 3 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? __________ miles per hour