Mathematics, 28.01.2020 21:11 VampireQueen01

The mean of a set of 10 numbers is 18.when two numbers 2k and 5k are added, the mean increases by 1.find the value of k.

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The mean of a set of 10 numbers is 18.when two numbers 2k and 5k are added, the mean increases by 1....

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