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The mean of three numbers is 19. If two of them are 10 and 15 find the third number ​

The mean of three numbers is 19. If two of them are 10 and 15 find the third number ​
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3 votes
The mean of three numbers is 19. If two of them are 10 and 15 find the third number ​

asked
User Yuriy Polezhayev
by
8.0k points

1 Answer

2 votes

Answer:

Hi,

Explanation:

Let's say x the third number


(10+15+x)/(3) =19\\\\25+x=57\\\\x=57-25\\\\x=32\\

answered
User Andrey Balaguta
by
9.1k points
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