A tank contains 400 litres of brine. Twelve litres of brine, each containing 2.5 N of dissolved salt, enter the tank per minute and the mixture, assumed uniform, leaves at the rate of 8 litres per min. If the concentration is to be 2 N/litre at the end of one hour, how many newtons of salt should there be present in the tank originally?
A tank contains 400 litres of brine. Twelve litres of brine, each containing 2.5 N of dissolved salt, enter the tank per minute and the mixture, assumed uniform, leaves at the rate of 8 litres per min. If the concentration is to be 2 N/litre at the end of one hour, how many newtons of salt should there be present in the tank originally?
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section: Chapter Questions
Problem 15T
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A tank contains 400 litres of brine. Twelve litres of brine, each containing 2.5 N of dissolved salt,
enter the tank per minute and the mixture, assumed uniform, leaves at the rate of 8 litres per min. If
the concentration is to be 2 N/litre at the end of one hour, how many newtons of salt should there
be present in the tank originally?
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