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Solve speed, time, and distance conversion problems. Learn to convert hours and minutes into decimal time for accurate calculations.
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Starter Questions 24/01/11 • A car travels 50km. The journey takes 30minutes. Calculate the speed in km/hr. • 2. A plane flies 2000km at an average speed of 400km/hr. How long is the journey ? If the plane takes off at 1350, what time does it land ? • 3. If I walk at an average speed of 9m.p.h. How far could I walk in a day ?
24/01/11 Learning Intention To be able to convert hours and minutes into decimal time.
Examples 24/01/11 Convert the following into decimal time, answers correct to 2 d.p. :- • 7 minutes • 43 minutes • 4 hours and 22 minutes • If my journey takes 57 minutes and I am travelling at an average speed 45km/hr. What distance have I travelled ?
24/01/11 Rule to remember To change from minutes to a decimal we divide by 60
24/01/11 Learning Intention To be able to convert hours and minutes into decimal time.