A tank originally contains 380 liters of brine holding 450 N of dissolved salt. Eight liters/min of brine containing 3.75 N/L of salt enters the tank and the mixture assumed uniform leaves at the rate of 12 liters/min. When will the amount of salt in the mixture be 640 N? 49 minutes 39 minutes O 25 minutes O 29 minutes

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter12: Quadratic Functions
Section12.8: Joint And Combined Variation
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A tank originally contains 380 liters of brine holding 450 N of dissolved salt.
Eight liters/min of brine containing 3.75 N/L of salt enters the tank and the
mixture assumed uniform leaves at the rate of 12 liters/min. When will the
amount of salt in the mixture be 640 N?
49 minutes
39 minutes
25 minutes
29 minutes
Transcribed Image Text:A tank originally contains 380 liters of brine holding 450 N of dissolved salt. Eight liters/min of brine containing 3.75 N/L of salt enters the tank and the mixture assumed uniform leaves at the rate of 12 liters/min. When will the amount of salt in the mixture be 640 N? 49 minutes 39 minutes 25 minutes 29 minutes
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