Assignment:
Eva enters a walkathon that covers a total distance of 12 miles. She runs part of the distance at a rate of 6 mph and walks the remaining distance at a rate of 4 mph, completing the course in 2 hours and 30 minutes.
- How far did Eva run?
- How many hours did she spend running?
Provide complete and step by step solution for the question and show calculations and use formulas.