Harry ran for 5 miles. He started at 10:30 and finished at 11:20. What was Harry's average speed in miles per hour?
The answer I got was 6.25 mph.
d=r*t
5=r*.80
5/.80=6.25
but the answers to choose from are:
3
4
5
6
What does r and t stand for
To find Harry's average speed in miles per hour, we need to calculate the total time he took to run and the total distance he covered.
1. Calculate the time difference:
- Harry started at 10:30 and finished at 11:20.
- The time difference is 11:20 - 10:30 = 50 minutes.
2. Convert the time difference to hours:
- There are 60 minutes in 1 hour.
- 50 minutes ÷ 60 = 0.83 hours (rounded to two decimal places).
3. Calculate the average speed:
- Average speed = total distance ÷ total time.
- Harry ran 5 miles.
- Average speed = 5 miles ÷ 0.83 hours = 6.02 miles per hour (rounded to two decimal places).
Therefore, Harry's average speed was approximately 6.02 miles per hour.
To find Harry's average speed in miles per hour, we need to calculate the total time it took him to run 5 miles and then divide that by the number of miles.
First, let's find the total time it took for Harry to run 5 miles. Harry started at 10:30 and finished at 11:20. We need to calculate the difference in time between the two.
To do this, we can subtract the starting time from the finishing time:
11:20 - 10:30 = 0:50 (based on a 24-hour clock format)
So, it took Harry 50 minutes to run 5 miles.
Next, we need to convert the time from minutes to hours because we want to calculate the average speed in miles per hour.
To convert minutes to hours, we divide the number of minutes by 60:
50 minutes / 60 = 0.83 hours (rounded to two decimal places)
Now we can calculate the average speed by dividing the total distance (5 miles) by the time it took (0.83 hours):
Average speed = 5 miles / 0.83 hours = 6.02 miles per hour (rounded to two decimal places)
Therefore, Harry's average speed was approximately 6.02 miles per hour.