Mathematics, 08.04.2020 00:00 wibi1963
The mean of 15 numbers is 12. An extra number is included and the mean increases to 13. What the extra number?
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In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth
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The mean of 15 numbers is 12. An extra number is included and the mean increases to 13. What the ext...
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