change s going for a walk . he walks at the speed of 3 miles per hour for 7.5 miles for how many hours does he walk
He walks at a speed of 3 miles per hour for 7.5 miles. To calculate the time he spends walking, you can use the formula:
Time = Distance / Speed
Time = 7.5 miles / 3 miles per hour
Time = 2.5 hours
Therefore, he walks for 2.5 hours.