Call the number of people
.
Looking at the first person, they can shake hands with
other people (since they can't shake hands with themselves.)
For the second person, they can shake hands with
other people. (They can't shake hands with themselves and they already shook with Person 1, on Person 1's turn.
If we carry on this way we see that the total number of shakes is given by:
which simplifies to:
.
For
we then have:
OR
That would be 8000.. hope it helps
Answer:
80%
Step-by-step explanation:
1/8 is only 0.125 and 80% is 0.8
Answer:
158 feet
Step-by-step explanation:
if you lay it out flat, you will need to double it because it is also 79 feet tall. that would be the total distance traveled
Answer:
You get 80 degrees
Step-by-step explanation:
50 plus 50 gets you 100. 180-100 80