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$$\lim_{ x\rightarrow 100 }{ \frac { 10-\sqrt { x } }{ x+5 } } $$

Could you explain how to do this without using a calculator and using basic rules of finding limits? Thanks

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    Just plug in: the function is continuous and defined at $100$.2012-06-28
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    And you surely don’t need a calculator to find $\sqrt{100}$.2012-06-28
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    There are many many solutions (very well written) below and no comments from the author!2012-06-28

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