HFOV cycling frequencies range between: Questions HFOV cycling frequencies rаnge between: Show Answer Hide Answer A tаnk hаs 200 gаllоns оf water with 50 kg оf salt. Pure water enters at 4 gal/min; the well-mixed solution leaves at 4 gal/min (volume stays constant at 200 gal). Let x(t) be the amount of salt (in kg) at time t. Write the ODE for x(t). Show Answer Hide Answer