tank contains 100 gal of fresh water.  A solution containing 5lb/gal of soluble lawn fertilizer runs into the tank at the rate of 1 gal/min, and the mixture is pumped out of the tank at the rate of 3 gal/min.  Find maximum amou not of fertilizer in the tank and the time required to reach the maximum.   find the time required to reach the maximum amount of fertilizer in the tank.

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter3: Polynomial And Rational Functions
Section3.1: Quadratic Functions And Models
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A tank contains 100 gal of fresh water.  A solution containing 5lb/gal of soluble lawn fertilizer runs into the tank at the rate of 1 gal/min, and the mixture is pumped out of the tank at the rate of 3 gal/min.  Find maximum amou not of fertilizer in the tank and the time required to reach the maximum.

 

find the time required to reach the maximum amount of fertilizer in the tank.

 

t=_____ min round to neares tenth

the maximum amount of fertilizer in the tank is y=____lb.

round to the nearest tenth.

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