Answer:
Step-by-step explanation:
Total number of balls =
Let S be the sample space.
Then, n(S) = Number of ways of drawing 2 balls out of 7
= ⁷ C₂
=
=21
Let E = Event of drawing 2 balls, none of which is blue.
∴n(E)= Number of ways of drawing 2 balls out of (2 + 3) balls.
= ⁵ C₂
=
= 10
∴ P (E) =
The answer is 11 and 12, because if you add them you get 23 and if you subtract them you get 1.
Answer:
20x-10(or if solving for x x = -1/2
Step-by-step explanation:
Combine Like Terms
10 5/6x+9 1/6x-1-9 = 19 6/6x -10 = 20x-10