There are $5$ girls and $5$ boys in a chess club. the club holds a round-robin tournament in which every player plays against every other player exactly once.

if anita is one of the club members, what fraction of all games at the tournament does anita play in? enter your answer as a fraction in simplified form.

1/5

Step-by-step explanation:

Anita plays against 9 opponents, so she plays 9 games. There are 45 games played in total, so Anita plays in 9/45 or 1/5 of the games.

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x

answer: 3.26019516

step-by-step explanation: