contestada

Scientists can estimate the number of bacteria in a refrigerated food using the formula 0.26=
where b is the number of
bacteria and t is the time in seconds. What was the approximate time a food was in a refrigerator if there were 625 bacteria?
O A. 30 seconds
O
B. 40 seconds
C. 50 seconds
O
D. 60 seconds

Respuesta :

skyluke89

Time is C. 50 seconds

Step-by-step explanation:

The population of bacteria at time t here is given by

[tex]0.2b=\frac{t^2}{20}[/tex]

where

b is the number of bacteria

t is the time in seconds

Here we want to find the approximate time at which the number of bacteria is

b = 625

Substituting into the equation and solving for t, we find:

[tex]t^2=20\cdot 0.2 b\\t=\sqrt{4b}=\sqrt{4\cdot 625}=50 s[/tex]

Therefore, the solution is

C. 50 seconds

Learn more about population growth:

brainly.com/question/10689103

#LearnwithBrainly

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