Respuesta :
Answer:
7.385 minutes
Step-by-step explanation:
Given that :
Average speed = 65km/hr
The distance covered = 8km
The time taken Given the information above :
Recall:
Speed = distance / time
Time taken = distance / speed
Time taken = 8km / 65km/hr
Time taken = 0.1230769 hr
Time taken = 0.1230769 * 60 = 7.385 minutes
The time taken to cover this distance is 7.3848 minutes
What is speed?
Speed is the change of an object's distance within a specified period of time.
Mathematically, speed can be calculated by using the relation:
- Speed = distance/time
From the given information:
- The average speed = 65 km/h
- The distance = 8 km
From the above formula, we can make the time the subject of the formula:
- Speed = distance/time
By cross multiplying
- Time = distance/speed
- Time = 8 km / 65 km/h
- Time = 0.12308 hour
We all know that:
- 60 seconds = 1 minute
- 60 minutes = 1 hour
Thus, time(t) = (0.12308 × 60) minutes
Time(t) = 7.3848 minutes
Learn more about speed here:
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