A well-stirred 50-L tank initially holds 30 g of salt

MATHEMATICS · Single correct · AP · Calculus AB · Differential Equations · Differential Equations

Problem

A well-stirred 50-L tank initially holds 30 g of salt. Brine containing 2 g/L of salt enters at 5 L/min, and the mixture leaves at the same rate. Approximately what is the salt concentration in the tank after 10 minutes? (a) 2.50 g/L2.50\text{ g/L} (b) 2.00 g/L2.00\text{ g/L} (c) 1.48 g/L1.48\text{ g/L} (d) 0.60 g/L0.60\text{ g/L}

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