Charlyn991 Charlyn991
  • 20-05-2014
  • Mathematics
Answered

a helicopter blade spins 775 times in 3 minutes. find the rate of the revolutions per second.



Answer :

Ryan2
Ryan2 Ryan2
  • 20-05-2014
Use the proportions property:

775 times   ---------- 180 sec
  x               ----------    1 sec

[tex]x=\frac{775}{180}=4.3 \ times \ per \ sec[/tex]
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