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Amy drives 300 miles from London to Newcastle.
She drives the first 165 miles at an average speed of 60 mph.
From this point it takes Amy 3 hours and 5 minutes to complete her journey.
What was Amy's average speed for the whole journey?
Give your answer correct to 3 significant figures.

Respuesta :

michell96

Amy's average speed during her whole journey from London to Newcastle (300 miles) was 51.422 miles per hour.

How to calculate the average speed?

This is calculated by taking the total distance and dividing it into the total time.

What was Amy's average speed?

First part of ther journey: 165 miles at 60mph, which is equal to 2.75 hours

  • Time: distance/speed
  • Time: 165 miles/ 60 mph= 2.75 hours

Second part of her journey: 135 miles in 3.083 hours (3 hours and 5 minutes)

  • Total distance: 300 miles
  • Total time: 2.75 hours + 3.084 = 5.834

Average speed: 300 miles / 5.834 = 51.422 miles per hour

Learn more about average speed in: https://brainly.com/question/12322912

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