it takes Serina 0.25 hours to drive to school her route is 18 km long. What is Serina's average speed on her drive to school?
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Explanation:Speed = Distance/Time
S = 18/0.25
Speed = 72 km/hr
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Answered by
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Answer:
Speed = distance / time
time in seconds
--> 18/ 0.25 ×60×60
18 / 25 ×36
1/50
metre per second
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