A sprinter ran 100 meter dash in 10.92 seconds. What was the sprinters speed in miles per hour
2 answers:
The formula for working out speed :
speed = distance ÷ time.
substitute the numbers : 100m ÷ 10.92s.
give your answer in meters per second ( m/s )
the answer I got while working this out was:
9.2 m/s.
21.26365296628937 is the answer.
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I could only help on two. Hope it helps though! =)
f(5) = 9
Do this by substitution:
f(x) = 4x - 11
f(5) = 4(5) - 11
f(5) = 20 - 11
f(5) = 9
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