vianey5546
vianey5546 vianey5546
  • 30-01-2018
  • Mathematics
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a wheel makes 40 revolutions per minute at this rate how many minutes does it take the wheel to make 280 revolutions

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Аноним Аноним
  • 30-01-2018
It would take 7 minutes. 

Because it makes 40 revolutions per minute, and it needs to make 280 revolutions, you can find it by 280/40, which equals 7.
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s1m1
s1m1 s1m1
  • 30-01-2018
40 revolution in 1 minute
280 revolutions in x minutres

X= 280•1/40= 280/40= 28/4=7 minutes
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