Considering no discounts for bringing people to the theatre, and a being the number of adults attending the show and b the number of children attending the show then:

The answer to the question is:
12 7/15
Since it is 11 22/15. When you have 15/15 it makes a whole. Then whatever you have left you make a fraction again.
To find points, we use the graphing technique or analytic algebra.
Answer:
<em>5</em><em> players participated in the tournament.</em>
Step-by-step explanation:
In a small chess tournament, 20 matches were played.
Let us assume that n number of players participated in the tournament
As in each game 2 players play, so the number of ways they can play is,

As they played 2 games with every other participant in the tournament.
So the total number of games is,

But it is given to be 20, so





As
, so we get n=5.
Therefore, 5 players participated in the tournament.