jjgirl2020
jjgirl2020 jjgirl2020
  • 25-05-2020
  • Mathematics
contestada

Your friend can clap his hands 28 times in 12 seconds. How many times can your friend clap his hands in 0.5 minute?

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mrohugcc
mrohugcc mrohugcc
  • 25-05-2020
60 seconds in a minute

12 goes into 60, 5 times,
So 5 * 28 = 140
140 claps per minute

0.5 minute is 30 seconds, half a minute so divide by 2,
140/2 = 70

70 times every 0.5 minutes
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