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**Yehia** The volume of water in a solution during a chemical process varies with time and satisfies the equation: $\displaystyle dx/dt=-3x/(1 plus t)^2$ (sorry no plus sign on this laptop :P )

Anyway, initially at rest, t=0, x= 1000. Show that at time T the volume is given by: x=1000e^(-3t/(1 plus t))

And then prove that the volume of water tends to a limit as t tends to infinite and find that limit to the nearest litre.

Any help would be VERY appreciated coz I am so stumped. Thank you!!!!