Answer:
k = 15
Step-by-step explanation:
12/4/5 = 4/5/4/5 k
15 = k
OR
5/4 (12) = 4/5 (5/4) k (multiply by the reciprocal)
15 = k
Answer:
I have no clue I really don't have no clue but you 10 divided by 3 and then you could double it by 2 and then after that you could develop by 3 and then that's how much Stephen get
Do 180-110-30 and you will get your answer
Step-by-step explanation:
72÷9= 8, so the boat was only doing 8mph going upstream (against the current) the return trip downstream only took 4 hours. 72÷18=4 meaning the boat was traveling at 18mph downstream (no current) there is a 10mph difference between upstream and downstream therefore the current had to be running at 10 mph. so the speed of the tug boat is 8mph without a current and the current is running at 10mph.
Answer:
a) 
b) 
c) P(X=6)=0
d) P(X=9)=0
Step-by-step explanation:
We know that are 4 men and 6 women are ranked according to their scores on an exam. X = 1 indicates that a man achieved the highest score on the exam.
a) We calculate P(X=2).
We calculate the number of possible combinations

We calculate the number of favorable combinations

We get that is

b) We calculate P(X=3).
We calculate the number of possible combinations

We calculate the number of favorable combinations

We get that is

c) We calculate P(X=6). This case is not possible because 6 men cannot be selected because we have been given 4 men.
We conclude P(X=6)=0.
d) We calculate P(X=9). This case is not possible because 9 men cannot be selected because we have been given 4 men.
We conclude P(X=9)=0.