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Irina-Kira [14]
3 years ago
13

HELPPP FIRST ANSWER THAT IS ACCURATE WITH EXPLANATION GETS BRAINLIST 5 STARS AND THANKS ( DONT PLAGIARIZE )

Mathematics
2 answers:
Marta_Voda [28]3 years ago
8 0

Answer:

20 x 19 = 380 hands touched

380/2 = 190 handshakes

Step-by-step explanation:

Svetach [21]3 years ago
8 0

Answer:   190 handshakes

Step-by-step explanation:

The first will shake 19  hands, the second 18 hands and so  on......the 19 th will shake one hand

so 19+18+17+.....+1=19*20/2=19*10=190 handshakes

It is  ok now?

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