The following are the ages (years) of 5 people in a room: 23, 20, 15, 12, 17 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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3
Answer:
Step-by-step explanation:
mean=23+20+15+17+A/6=19
23+20+15+17+A=19(6)
43+32+A=114
75+A=114
A=39
Answered by
0
Answer:
39
Step-by-step explanation:
mean
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