24-09-2014
Mathematics

Answered

A computer's fan rotates 2000 times in 40 seconds. Find the unit rate in rotations per second.

Answer :

Аноним Аноним

24-09-2014

A unit rate would be a ratio where 1 is the denominator . . .

(2000 rotations)/(40 sec)

2000/40

200/4

50 rotations/sec

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24-09-2014

[tex]speed=\frac{number\ of\ revolutions}{time}\\number\ of\ revolutions=2000\\time=40s\\\\ speed=\frac{2000}{40s}=50\frac{rotations}{second}\\\\Answer\ is\ 50\frac{rotations}{second}.[/tex]

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