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PLEASE HELP!!
Cheetahs can run 550 m with an average speed of 100 km/h. A) How long would it take to do this at that speed? B) If a certain cheetah has an average speed of only 85 km/h, what distance would it cover in the same time interval from part (A)?

Sagot :

Answer:A) 19.8 seconds

B) 467.5 metres

Explanation: 100km/hr = 27.78m/s

So, it covers 27.78 metres in one second

Take the time it would cover 550m as x

Therefore 27.78m = 1second

550m = x

Cross multiplying

27.78x = 550m

Divide both sides by the coefficient of x

x = 550÷27.78

x = 19.8seconds

B) distance = speed × time

Speed = 85km/hr = 23.61m/s

Time = 19.8seconds

Therefore,

Distance = 23.61 × 19.8

Distance = 467.5m

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