Answer:
<u>The correct answer is that the average speed of Usain Bolt in 2009 was 10.42 meters per second.</u>
Step-by-step explanation:
<u>1. Let's check the information given to resolve the question:
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World Record time of Usain Bolt = 9 seconds 3/5
Distance = 100 meters
Find his average speed in meters per second
<u>2. Let's find the average speed of Usain Bolt in 2009:</u>
World Record time of Usain Bolt = 9 seconds 3/5 = 9.6 seconds (3/5 = 0.6)
World Record time of Usain Bolt = Distance / World Record time
World Record time of Usain Bolt = 100 meters /9.6 seconds
World Record time of Usain Bolt = 10.416666 meters per second
World Record time of Usain Bolt = 10.42 meters per second (Rounding to two decimal places)
<u>The correct answer is that the average speed of Usain Bolt in 2009 was 10.42 meters per second.</u>