The answer is 28
30 minutes is half of an hour so you have to divide 7 by 2 which is 3.5 and then multiply 3.5 by 8 to get 28
Answer:
Step-by-step explanation:
-5z + 4n + 18z -10n
Combine like-terms
13z -6n
Your answer is A.) 13z - 6n.
Probability of getting heads on first try is 1/2
probability of getting heads on 2nd try is 1/2
probability of getting both is : 1/2 * 1/2 = 1/4
These are both independent because 1 does not effect the other
Answer:
8: 79
9: 42 (I was doing it in my head it probably no correct)
10: 183
11: 750
12: 92
13: i don't know sorry
Step-by-step explanation:
I can't promise that all are going to be correct, but hopefully it's helpful because I am in 6th grade but am in high school math.