Question

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

Answer 1

`x=ln 0.4/0.879=-1.042424`, nearly.

Explanation:

Here, `e^0.879=90/225=0.4`

Inversely, 0.879 x= ln 0.4

So, `x=ln 0.4/0.879=-1.042424`, nearly