Aculture started with 6,000 bacteria. after 4
hours, it grew to 7,800 bacteria. predict how
many bacteria will be present after 18 hours.
round your answer to the nearest whole
number.
p- aekt

19539 bacteria will be present after 18 hours

Solution:

Initial value of bacteria N = 6000

Value after 4 hours = 7800

The standard exponential equation is given as:

where

N is amount after time t

No is the initial amount

k is the constant rate of growth

t is time

Plugging in the values in formula we get,

Solving for "k" we get,

Taking "ln" on both sides, we get

On solving for ln, we get k = -0.0656

The equation becomes,

Now put "t" = 18,

Hence the bacteria present after 18 hours is 19539

2^y = ln 5, or   y(ln 2) = ln 5.   solving for y,   y = (ln 5) / (ln 2).   y=5

step-by-step explanation:

.19875994384

step-by-step explanation:

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