rzykira13 rzykira13

22-03-2018
Mathematics

contestada

Mike ran 10 km in 54 minutes. What was Mikes approximate average speed in cm per second

Respuesta :

calculista calculista

31-03-2018

we know that

1 km-------------> 1000 m-----------> 100000 cm
1 min------------> 60 sec

then

10 km is------------> 10*100000------> 1000000 cm
and
54 min is------------> 54*60------------> 3240 sec

hence
[average speed]=distance/time

[average speed]=1000000 cm/3240 sec------------> 308.64 cm/sec

the answer is
308.64 cm/sec

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