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Niamh was driving back home following a business trip.
She looked at her sav nav at 17:30
Niamh arrived home at 19:42

Work out the average speed of the car, in mph, from 17:30 to 19:42
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Niamh was driving back home following a business trip She looked at her sav nav at 1730 Niamh arrived home at 1942 Work out the average speed of the car in mph class=

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Answer:

Step-by-step explanation:

mhanifa

Answer:

  • 65 mph

Step-by-step explanation:

Speed formula:

  • speed = distance / time

Distance = 143 miles

Time is:

  • 19:42 - 17:30 = 2 hr 12 min = 2 12/60 hr = 2.2 hr

Speed is:

  • 143/2.2 = 65 mph

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