The formula NEXT = 2 • NOW models the number of bacteria in a test tube. There were 10 bacteria in the test tube after the first
2 answers:
Answer:
160 bacteria
Step-by-step explanation:
We can create an exponential function of the form: , where a is the initial value, b is the rate, and x is the time.
Here, a = 10 and b = 2, so our equation is:
We want the number of bacteria present after the fifth hour, or when x = 5, so we have:
There were 160 bacteria.
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The work and answer provided are correct, the simpler way of doing it is
1)
1/6 page written in 1/12 of a minute
to write a full page, you would need to write 1/6, 6 times
so,
and
so it takes 1/2 of a minute to write a full page, there are 60 seconds in a minute, 1/2 of 60 seconds is 30 seconds
same process works for question 2(use 3 instead of 6 though)
1)
1/6 page written in 1/12 of a minute
to write a full page, you would need to write 1/6, 6 times
so,
and
so it takes 1/2 of a minute to write a full page, there are 60 seconds in a minute, 1/2 of 60 seconds is 30 seconds
same process works for question 2(use 3 instead of 6 though)