Mary drives to work at 63 miles per hour before the morning rush hour, but returns home during the evening rush hour at only 33 miles per hour. Explain why 48 is not a valid solution to the problem "What was her average speed for the day's driving?"

Question

Quizplus · Accepted Answer

The Answer of Mary drives to work at 63 miles per hour before the morning rush hour, but returns home during the evening rush hour at only 33 miles per hour. Explain why 48 is not a valid solution to the problem "What was her average speed for the day's driving?"

Mary Drives to Work at 63 Miles Per Hour Before