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3 years ago

8

At the beginning of an experiment, there are 400 grams of contaminants. Each hour, three-fourths of the contaminants are filtere

d out.
A. Formulate a recursive sequence modeling the number of grams after "n" hours.

B. Use the model to calculate the amount of contaminants after the third hour of the experiment.

1 answer:

WITCHER [35]3 years ago

7 0

<span>a(n) = 0.75*a(n-1)
</span><span>Ans: 400 ; (3/4)400 = 300 ; (3/4)300 = 900/4 ; (3/4)900/4 = 2700/16 = 168.75g's</span>

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