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MA_775_DIABLO [31]
2 years ago
14

The following are the ages (years) of 5 people in a room:

Mathematics
2 answers:
Maksim231197 [3]2 years ago
6 0

Answer:

the age of the person that entered the room is 37

Step-by-step explanation:

m=\frac{sum of terms}{number of terms}

\frac{x}{6} =21\\

x=126

12+21+25+18+13=89

126-89=37

aalyn [17]2 years ago
4 0

Answer:

Step-by-step explanation:

(12 + 21 + 25 + 18 + 13 + n) / 6 = 21

    (12 + 21 + 25 + 18 + 13 + n) = 126

                                             n = 126 - 12 - 21 - 25 - 18 - 13

                                             n = 37

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