How do you solve for x in $90 e^{- .879 x} = 225$ $90e^(-.879x)=225$ ?

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Answer 1 · 2016-05-19T03:56:24

$x = \frac{ln 0.4}{0.879} = - 1.042424$ $x=ln 0.4/0.879=-1.042424$ , nearly.

Here, $e^{0.879} = \frac{90}{225} = 0.4$ $e^0.879=90/225=0.4$

Inversely, 0.879 x= ln 0.4

So, $x = \frac{ln 0.4}{0.879} = - 1.042424$ $x=ln 0.4/0.879=-1.042424$ , nearly

How do you solve for x in 90e−.879x=22590e^(-.879x)=225?