A cross country skier can complete a 7.5 km race in 45 minutes. What is the skiers's average speed

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18-08-2017
Physics

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A cross country skier can complete a 7.5 km race in 45 minutes. What is the skiers's average speed

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Plasma72 Plasma72 · Answer 1 · 2017-08-18T17:58:42+02:00

Plasma72 Plasma72

18-08-2017

Average speed can be found with distance/time. In this case the distance is 7.5 km and the time is 45 minutes

7.5 / 45 = 15/90 = 3/18 = 1/6

Their average speed was one km every 6 minutes

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