Question: 4 Kai uses this formula to work out the average speed of a car in kilometres per hour (km/h), when he knows the distance it

4 Kai uses this formula to work out the average speed of a car in kilometres per hour (km/h), when he knows the distance it has travelled and the time it has taken.

speed = distance ÷ time Work out the average speed of these cars. The first one has been done for you.

B distance = 30 km, time = hour b distance=45 km, time

B distance = 30 km, time = hour b distance=45 km, time = hour C distance = 16 km, time = hour So, speed=30=30 4 = 120 km/h

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