Answer:
15 players played in the chess tournament.
Step-by-step explanation:
When there are 15 players, the first player plays 14 games and step aside.
remaining 14 player
next player plays 13 games. steps aside
remaining 13 players
next player plays 12 games. steps aside
remaining 12 players
next player plays 11 games. steps aside
remaining 11 players
.
.
.
.
Last player plays 1 game and steps aside
remaining 1 player who will not play against himself.
∴ Sum of all games played
= 14 + 13 + 12 + 11 + 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 105 games played
Answer:
should be segment BT, that's what i put and it was right. hope this helps
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given


Required
After how many minutes, will they round together
First, convert the given time to minutes









So, we have:


List out the multiples of the time of both security personnel take round.


In the above lists, the common time is:

<em>This implies that they go on round after </em>
<em></em>
As each chair needs 12.6667 feet lumber.So 15 chairs will need 15*12.6667=190.0005 lumber