SOLUTION: Carl is <i>a</i> years old. His sister Jenny is six more than twice his age. What is the average of their ages?

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Question 211116: Carl is a years old. His sister Jenny is six more than twice his age. What is the average of their ages?
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Carl is a
Jenny is 2a%2B6
To find an average, add all the elements and divde that total by the number of elements.
%28a+%2B+%282a%2B6%29%29%2F2
%283a%2B6%29%2F2