A tank originally contains 100 gal of fresh water. Then water containing - lb of salt per gallon is poured into the tank at a rate of 2 2 gal/min, and the mixture is allowed to leave at the same rate. After 10 min the process is stopped, and fresh water is poured into the tank at a rate of 8 gal/min, with the mixture again leaving at the same rate. Find the amount of salt in the tank at the end of an additional 10 min. Round your answer to two decimal places. i 7.42 lbs
A tank originally contains 100 gal of fresh water. Then water containing - lb of salt per gallon is poured into the tank at a rate of 2 2 gal/min, and the mixture is allowed to leave at the same rate. After 10 min the process is stopped, and fresh water is poured into the tank at a rate of 8 gal/min, with the mixture again leaving at the same rate. Find the amount of salt in the tank at the end of an additional 10 min. Round your answer to two decimal places. i 7.42 lbs
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:A tank originally contains 100 gal of fresh water. Then water containing - lb of salt per gallon is poured into the tank at a rate of 2
2
gal/min, and the mixture is allowed to leave at the same rate. After 10 min the process is stopped, and fresh water is poured into the
tank at a rate of 8 gal/min, with the mixture again leaving at the same rate. Find the amount of salt in the tank at the end of an
additional 10 min.
Round your answer to two decimal places.
i 7.42
lbs
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