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The first and ninth terms of an arithmetic sequence are 2/3 and 4/9, respectively. What is the fifth term?

 Jan 27, 2022
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The first and ninth terms of an arithmetic sequence are 2/3 and 4/9, respectively. What is the fifth term?  

 

The fifth term is exactly halfway between the first and the ninth. 

 

Note that 2/3 is the same as 6/9.  Halfway between 6/9 and 4/9 is 5/9

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 Jan 27, 2022

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