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

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

have a good day!