SOLUTION: The number bacteria growing in an incubation culture increases with time according to B(x)=8,200(5)^x, where x is time in days. After how many days will the number of bacteria in t

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Question 924551: The number bacteria growing in an incubation culture increases with time according to B(x)=8,200(5)^x, where x is time in days. After how many days will the number of bacteria in the culture be 205,000?
Found 3 solutions by josmiceli, josgarithmetic, MathTherapy:
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!

given:






In 2 days
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!


|



Evaluate x for B=205000.
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!
The number bacteria growing in an incubation culture increases with time according to B(x)=8,200(5)^x, where x is time in days. After how many days will the number of bacteria in the culture be 205,000? 




 ------ Substituting 205,000 for B(x)







2 = x ------ Bases are equal, and so are the exponents

 days 

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