A 100,000 liter tank of pure water was accidentally mixed with a 7000 liters of salt with a concentration of 90k kilos. To solve this problem, they continuously pour fresh water into the tank at a rate of 50 liters per minute and release the salt solution at the same rate. Find: a.The differential equation on this problem. b.The amount of salt after 3 days. c.Number of minutes at half of the original salt content.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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A 100,000 liter tank of pure water was
accidentally mixed with a 7000 liters of salt
with a concentration of 90k kilos. To solve this
problem, they continuously pour fresh water
into the tank at a rate of 50 liters per minute
and release the salt solution at the same rate.
Find:
a.The differential equation on this problem.
b.The amount of salt after 3 days.
c.Number of minutes at half of the original
salt content.
Transcribed Image Text:A 100,000 liter tank of pure water was accidentally mixed with a 7000 liters of salt with a concentration of 90k kilos. To solve this problem, they continuously pour fresh water into the tank at a rate of 50 liters per minute and release the salt solution at the same rate. Find: a.The differential equation on this problem. b.The amount of salt after 3 days. c.Number of minutes at half of the original salt content.
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