10 people are attending a chess tournament, and they are from Team A, Team B and Team C. Every person will complete each of the other 9 contestants. The winner gets 1 point, the loser gets 0 point, and they each get 0.5 points if the game is tied. After the tournament, the average of Team A is 4.5 points, the average of Team B is 3.6 points, and the average of Team C is 9 points. How many members are in Team A, Team B and Team C?

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

region b will make the inequalities y < 2x + 1 and y > -x - 2 true ⇒ answer a

step-by-step explanation:

* lets study the graph and the inequality to solve the question

- the inequality y > -x - 2

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = -2 that means the line intersect the y-axis at point (0 , -2)

∵ the sign of the inequality is >

∴ we shad the part over the line

  region a and b

- the inequality y < 2x + 1

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = 1 that means the line intersect the y-axis at point (0 , 1)

∵ the sign of the inequality is <

∴ we shad the part under the line

  region b and c

∵ the common region between the two lines is region b

∴ region b will make the inequalities y < 2x + 1 and y > -x - 2 true

i believe the answers 600m