You would have no problem at all if it said "7 cows minus 2 cows", or "7 books minus 2 books". The THINGS just happen to be m's instead of cows or books.
Number of students = 26
Number of students without siblings = 4
⇒ Number of students with at least one siblings = 26 - 4 = 22
Number of students with brothers = 17
Number of students with sisters = 7
⇒ Number of students with both a brother and a sister = 17 + 7 - 22 = 2
P(student has a brother, given that they have a sister) = 2/7
Answer: 2/7
Answer:
300 miles
Step-by-step explanation:
i am doing the same test right now
Answer:
30 dollars
Step-by-step explanation:
40% of 100 = 40. 40% of 50 = 20. 50-20 = 30.
Answer:
x=-1
Step-by-step explanation:
