Mathematics, 19.06.2021 14:00 talia43

the average of three numbers is 6. the average of the first and second is 7, what is the value of the third number?

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the average of three numbers is 6. the average of the first and second is 7, what is the value of the third number?​

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the average of three numbers is 6. the average of the first and second is 7, what is the value of the third number?