Answer:

Step-by-step explanation:
Hello,
as the mean age of 5 people is 40
it means that the sum of the 5 ages is 40*5=200
now a person enters the room, let's note x his age
the new mean is


So the age of the new person is 16
hope this helps
Answer:
-249387
Step-by-step explanation:
1) Write out the problem
-5+-10-41562*6
2) Following order of operations, multiply -41562 by 6:
-5+-10-249372
3) Solve -5+-10:
-15-249372
4) Subtract:
-249387
Answer:
Divide. Answer is 4
Step-by-step explanation:
First, divide.

Since you can't have a third of a box, you need the next number up, which is 4.