Khaya is delivering groceries to his mother who stays 8km from the shop. How long will it take him to cover this distance if he drives at an average speed of 65km/h? Give your answer rounded to the nearest minute.​

Respuesta :

fichoh

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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