dpazmembreno
28.09.2021 •
Mathematics
The following are the ages (years) of 5 people in a room: 24 , 24 , 15 , 16 , 19 A person enters the room. The mean age of the 6 people is now 19. What is the age of the person who entered the room?
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Ответ:
16 years old.
Step-by-step explanation:
(24+24+15+16+19+X) / 6 = 19
(98 + X) / 6 = 19
98 + X = (19)*(6)
98 + X = 114
X = 114-98
X = 16
Ответ:
A
Step-by-step explanation: