Question 980457
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Set


*[tex \LARGE \ \ \ \ \ \ \ \ \ \  x\left(60\ -\ 0.0004x\right)\ =\ 220000]


Just solve the quadratic.  If you get a negative root, discard it.  Round the positive root UP to the next integer.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \