jdonaldson2199 jdonaldson2199
  • 17-01-2018
  • Mathematics
contestada

If 40 people shake hands with each person in the class, how many handshakes

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magicistotesrea
magicistotesrea magicistotesrea
  • 20-01-2018
780 handshakes.
(n(n-1))/2
(40(40-1))/2
(40*39)/2
1560/2
780
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