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The cleaning process of a certain industrial tank consists of 2 phases: • Phase 1: It begins...

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Basic Math

The cleaning process of a certain industrial tankconsists of 2 phases:
• Phase 1: It begins by placing 2,000 L of water in the tanktogether with 100 kg of a certain chemical cleaner (soluble inwater).
• Phase 2: 40 L / min of water containing 2 kg of the cleaner perliter are poured into the tank. At the same time, the well mixedsolution is pumped out of the tank at a rate of 45 L / min.
a) Find the quantity Q of the cleaner at any instant of time.
b) How many kilograms of the cleaner are present in the tank after50 minutes?
c) If the cleaning process ends when the chemical cleaner iscompletely removed from the tank, how long does that processtake?

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