Answer:

Step-by-step explanation:
Given




Required
Determine their next meeting time
First, we need to get their unit rate in minutes per round


Convert 360 seconds to minutes



Divide by 2/2

So, we have:



Next, is to determine the LCM of 18, 6 and 2



Their LCM is:


This means that they will meet 18 minutes after their initial time of departure.
So:


They would get approximately 3.33 ounces ( per person)
Answer:

And we can find this probability to find the answer:

And using the normal standar table or excel we got:

Step-by-step explanation:
Let X the random variable that represent the amounts of nocatine of a population, and for this case we know the distribution for X is given by:
Where
and
We have the following info from a sample of n =37:
the sample mean
And we want to find the following probability:

And we can use the z score formula given by;

And if we find the z score for the value of 0.872 we got:

And we can find this probability to find the answer:

And using the normal standar table or excel we got:

Answer:
Step-by-step explanation:
3 + 6 * 4 - 80 / 10 + 4 - 18 = 3 + 24 - 8 + 4 - 18 = 27 - 8 + 4 - 18 = 19 + 4 -18 = 23 - 18 = 5