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Answer to Question #46698 in Algebra for jojo

Question #46698
Suppose there are initially 2,200 bacteria in a culture and the number of bacteria triple each hour, the number of bacteria after t hours can be found using the formula y = 2200(3)t. How long will it take the culture to grow to 60,000 bacteria?

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Assignment Expert
24.09.14, 16:16

Dear Mindaugas.
Your solution corresponds to the case when the amount is expanding from 2200 to 60000 three times in equal parts, but in this problem we deal with the other case when the amount triples each hour. 

18.09.14, 21:02

60000/2200/3=9.(09) hours

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