Mathematics, 20.01.2020 21:31 Isa035

12 grams(g) of a chemical are added to a metal. the amount a, in grams, of the chemical remaining during a reaction with a metal plate decreases by 0.5g per second. if instead the plate were dissolved, the amount a', in grams, of chemical remaining would decrease by half of itself every 4 seconds. how many grams greater is a than a' after 12 seconds?

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