3. When polluted water begins to flow into an unpolluted pond, the concentration of pollutant, C, in the 35t pond at t hours is modelled by c(t)=- where C is measured in kg/cm3. 90+5t When will the concentration in the pond reach 5 kg/cm3?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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6. When polluted water begins to flow into an unpolluted pond, the concentration of pollutant, C, in the
pond at t hours is modelled by c(t)=
35t
, where C is measured in kg/cm3.
90 +5t
When will the concentration in the pond reach 5 kg/cm3?
Transcribed Image Text:6. When polluted water begins to flow into an unpolluted pond, the concentration of pollutant, C, in the pond at t hours is modelled by c(t)= 35t , where C is measured in kg/cm3. 90 +5t When will the concentration in the pond reach 5 kg/cm3?
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