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simultaneous equations. solve 15x t 17y = 21 17x t 15 y = 11​

By Gabriella

simultaneous equations. solve 15x t 17y = 21 17x t 15 y = 11​

About the author
Gabriella

The expected value of a random variable always
exists.
(True/False)​

The mean of 6 numbers is 11. The first 4 numbers are 6,8,10 and 12. Find the last numbers , if one number is 2 more than The other

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