Help? How do you do this?

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Julie is x years old. Kevin is x+3 years old.  Omar is 2x years old.  Write an expression, in terms of x, for the mean of their ages. 

Posted Tue 5th June, 2012 @ 16:57 by Ameenah:)

1 Answer

  • 1 vote

A mean is an average so to find this you would add the all up and divide by the number of things or in this case people.

x+(x+3)+2x      4x+3

------------- =  --------

       3                 3

Answered Tue 5th June, 2012 @ 17:04 by Dilly