Five people are at a party. Everyone shakes hands once with everyone else. How many handshakes are there? Show your work.

HELP ASAP PLEASE

10

Step-by-step explanation:

Let the people be represented by numbers (1,2,3,4,5)

-- now 1 shakes hands with the remaining 4, (i.e 2,3,4,5)

-- 2 shakes hands with the remaining 3 (i.e 3,4,5) as it has already shaken hands with 1

-- 3 shakes hands with the remaining two  and so on

If you recognize the pattern there are 4+3+2+1 handshakes that have taken place, or 10 handshakes

hi,

3. 12.15, you are correct.

4.2.01, your first digit is correct,

hope this !