Question

phoebe spends 2 hours training for an upcoming race. she runs full speed at 8 miles per hour for the race distance; then she walks back to her starting point at 2 miles per hour. how long does she spend walking? how long does she spend running?

Answer 1

Phoebe spends 2 hours running and D/2 hours walking.

Step-by-step explanation:

Phoebe spends 2 hours training for the race. She runs at a speed of 8 miles per hour for the race distance, which takes her 2 hours to complete (since time = distance / speed). Therefore, Phoebe spends the entire 2 hours running.

After finishing the race, Phoebe walks back to her starting point at a speed of 2 miles per hour. To find the time spent walking, we need to know the distance from the starting point to the finish line. If we assume Phoebe runs a total distance of D miles, then she walks the same distance back. So the time spent walking is D / 2 hours.