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Ria left home at 13:00
She drove for 30 minutes at a constant speed of 40 mph.
She then stopped for a break.
Ria then drove to the hospital at a constant speed.
She was at the hospital for 30 minutes.
She then drove home at a constant speed of 32 mph.
Show that she does not arrive home before 16:30

Ria left home at 1300 She drove for 30 minutes at a constant speed of 40 mph She then stopped for a break Ria then drove to the hospital at a constant speed She class=

Respuesta :

michell96

Ria will not arrive before half past four because in total the activities that she did will take her at leat three hours and forty-five minutes.

How to know the time Rita spent in each activity/movement?

The time can be determined by using the graph. In the graph, the time is represented by small squares. Each of this squares will be equivalent to 15 minutes.

You can infer this because Rita first drove for 30 minutes and in the graph the line goes from 0 in the x axis to two squares to the right (30/2 = 15 minutes.)

How much time did Rita spent?

  • First movement: 30 minutes
  • Break: 30 minutes (2 more squares)
  • Drive to the hospital:  60 minutes
  • Time at the hospital: 30 minutes
  • Drive back home: 75 minutes(Total distance 40 miles/ 32 miles per hour = 1.25 hours)

Total: 225 minutes or  3 hours and 45 minutes

If she started this activities at 13:00 so she will go back home at 4:45.

Learn more about time in: https://brainly.com/question/17054420

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