mgiannino21 mgiannino21

07-06-2017
Mathematics

contestada

A scientist counts 25 bacteria present in a culture and finds that the number of bacteria triples each hour. The function y = 25 ∙ 3x models the number of bacteria after x hours. Estimate when there will be about 1170 bacteria in the culture.

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budwilkins budwilkins

08-06-2017

1170 = 25•3x
1170 = 75x
x = 1170/75 = 15.6 hours

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