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OpenStudy (anonymous):
The lake contains 10^5m^3 if water with 5% pollution by volume. Each day 10^3m^3 of clean water flows into the lake and 10^3^3 of polluted lake water flows out. I cant seem to form the discrete time equation for for level of water pollution
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OpenStudy (anonymous):
Pollution in water over time t = 5(10^3)-10^3t Water over time t = 10^5-5(10^3) +10^3t
OpenStudy (anonymous):
@rouault thats none of the available answers tho
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