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Aleonysh [2.5K]
3 years ago
6

(PLZ NEED HELP) The doubling time of a bacterial population is 10 minutes. After 80 minutes, the bacterial population was 80000.

_____
Using your rounded answer for the initial population above (do not round your growth rate), find the size of the bacterial population after 5 hours.____
Mathematics
1 answer:
kykrilka [37]3 years ago
3 0

Answer:

Initial population = 313

Population after 5 hours = 3.36 \times 10^{11}

Step-by-step explanation:

Let initial population = x

It is given that population gets doubled every 10 minutes.

Population after 10 minutes = 2x

Population after 20 minutes = 2^{2} x

:

:

Population after 80 minutes = 2^{8} x and it is given as 80000.

\Rightarrow 2^{8} x = 80000\\\Rightarrow x = \dfrac{80000}{256}\\\Rightarrow x = 313

So, initial population is 312.5 = ~313

To find, population after 5 hours i.e. 5 \times 60 = 300 minutes

Population after 300 minutes =

2^{30} x\\\Rightarrow 2^{30} \times 313\\\Rightarrow 3.36 \times 10^{11}

So, the <em>answers </em>are:

Initial population = 313

Population after 5 hours = 3.36 \times 10^{11}

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