polluted water flows into a pond. the concentration of pollutant,c, in the pond at time,t, minutes is modeled by the equation c(t)=9-90000(1/10000+3t). where c is measured in kilograms per cubic metre.
a) when will the concentration of pollutant in the pond reach 6 kg/m^3
b) what will happen to the concentration of pollutant over time.

Question

polluted water flows into a pond. the concentration of pollutant,c, in the pond at time,t, minutes is modeled by the equation c(t)=9-90000(1/10000+3t). where c is measured in kilograms per cubic metre.
a) when will the concentration of pollutant in the pond reach 6 kg/m^3
b) what will happen to the concentration of pollutant over time.

ganeshie8 · Answer

$$\large c(t) = 9-90000\left(\dfrac{1}{10000+3t}\right)$$

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