Answer:
it looks like you already have the answers in...?
Step-by-step explanation:
please explain what you mean.
Answer:
11/30
Step-by-step explanation:
Since there are 30 students in total, and 11 of them have both a brother and a sister, then 11/30 (11 out of the 30 students) would be the probability of a student having a brother given that they have a sister.
Answer:
Is it grouping and adding?
(This is probably wrong, sorry)
2x - 3 [5x - 2(6-x)] =
2x - 3 [ 5x - 12 + 2x ] =
2x - 3 [ 7x - 12 ] =
2x - 21x + 36 =
-19x + 36