Respuesta :
Answer:
16.97km/h
Explanation:
to calculate average speed we divide the total distance and the total time:
[tex]v=\frac{distance}{time}[/tex]
we need distance in kilometres, so we must convert 25.9 miles to kilometres:
since 1 mile = 1.61 kilometres
then 25.9 miles = 25.9(1.61km)
--> 25.9 miles = 41.7 km
We have the distance, now we need the time in hours.
The total time was 2 hours, 27 minutes, and 25 seconds, so:
2 hours = 2 hours
27 minutes = 27/60 hours = 0.45 hours
25 seconds = 25/60 minutes = 0.4166/60 hours = 0.00694 hours
we sum all this and we get:
time = 2hous + 0.45 hours + 0.00694 hours = 2.45694 hours
now we can calculate average velocity in km/h:
[tex]v=\frac{distance}{time}=\frac{41.7km}{2.45694 h} =16.97km/h[/tex]
