A 120 gallon tank contains 90 lbs of salt dissolved in 90 gal of water. Brine containing 2 lb/gal of salt flows into the tank at the rate of 4 gal/min, and the mixture flows out of the tank at the rate of 3 gal/min. a) Determine the expression for the amount of salt in the tank at any time, t b) When is the tank full? c) How much salt does the tank contain when it is full?
A 120 gallon tank contains 90 lbs of salt dissolved in 90 gal of water. Brine containing 2 lb/gal of salt flows into the tank at the rate of 4 gal/min, and the mixture flows out of the tank at the rate of 3 gal/min. a) Determine the expression for the amount of salt in the tank at any time, t b) When is the tank full? c) How much salt does the tank contain when it is full?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter3: Multi-step Equations And Inequalities
Section: Chapter Questions
Problem 16PTTS
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A 120 gallon tank contains 90 lbs of salt dissolved in 90 gal of water. Brine
containing 2 lb/gal of salt flows into the tank at the rate of 4 gal/min, and the mixture flows
out of the tank at the rate of 3 gal/min.
a) Determine the expression for the amount of salt in the tank at any time, t
b) When is the tank full?
c) How much salt does the tank contain when it is full?
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