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Dahasolnce [82]
3 years ago
11

4 01 8

Mathematics
2 answers:
Free_Kalibri [48]3 years ago
4 0

Answer:

31

Step-by-step explanation:

6×23=138 this will be the total ages for the six people

22+21+23+24+17=107 total ages for the five people

138-107=31

31 is the age of the person who entered the room

Rashid [163]3 years ago
3 0

Answer:

13 years

Step-by-step explanation:

17 + 15 + 23 + 23 + 23 =101 / 5 = 20.2

Mean before was 20.2

In order for the mean to be 19, all those numbers would have to add up 114 to be divided by 6 and have a mean of 19

114 / 6 = 19

114-101 = 13 is that number

17 + 15 + 23 + 23 + 23 + 13 = 114 / 6 = 19

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