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28-09-2018
Mathematics

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F(n)=1.75n+4=25. 25 is the __th term.

Respuesta :

30-09-2018

[tex]1.75n+4=25\ \ \ \ |-4\\\\1.75n=21\ \ \ \ |:1.75\\\\n=\dfrac{21}{1.75}\\\\\boxed{n=12}\\\\Answer:\ \text{25 is the 12th term}[/tex]

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