Answered

A tank contains 5000 L of pure water. Brine that contains 10 g of salt per liter of water is pumped into the tank at a rate of 25 L/min. The concentration of salt after t minutes (in grams per liter) is

C(t) = 10t/200 + t

.

As

t → ∞,

what does the concentration approach?

Verified Answer :

LammettHash

\(\displaystyle\lim_{t\to\infty}C(t)=\lim_{t\to\infty}\frac{10t}{200+t}=10\)

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