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OpenStudy (anonymous):
PLEASE EXPLAIN THIS! :( At the end of a meeting all participants shook hands with each other. 28 handshakes were exchanged. How many people were in the meeting?
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OpenStudy (anonymous):
if there was one person there'd b no handshakes, if there were 2 there'd be 2, if there were 3 there'd x be so it follows a pattern similar to (n+1) write the formula and find the solution
OpenStudy (anonymous):
if there were 2 there'd be 1*
OpenStudy (anonymous):
I didn't get it. :(
OpenStudy (anonymous):
Also writing a picture could be helpful in finding the formula|dw:1376509169097:dw|
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