We know that the average speed can be computed as the quotient between the total distance traveled and the time it took to travel that distance.
We will find that Rene's average speed is 7.52 miles per hour.
The information given is:
Rene completed a 10-mile run in 1 hour 20 minutes.
Then we have:
Distance = 10 miles
Time = 1 hour 20 minutes.
The first thing we should do is transform the time to hours.
We know that:
60 minutes = 1 hour
1 = (1 hour)/(60 minutes)
Then:
[tex]20 minutes = (20 minutes)*1 = (20 minutes)*(1 hour)/(60 minutes) = 0.33 hours.[/tex]
Then we can rewrite:
[tex]Time = 1 hour 20 minutes = 1 hour + 0.33 hours = 1.33 hours.[/tex]
Now we can compute the average speed as:
[tex]s = (10 miles)/(1.33 hours) = 7.52 miles per hour.[/tex]
If you want to learn more, you can read:
https://brainly.com/question/12322912
