Question

Henry is conducting an experiment with 800 bacteria. He found the exponential growth rate to be 2.7% per hour.

What is the amount of bacteria present after 21 hours? Round to the nearest whole number.

(Hint: Use the exponential growth formula: y = b(1+r)^t )

Answer 1

@3mar plz help

Answer 2

Of course.
I will not be late for any help.

Answer 3

Where do I start? :)

Answer 4

@3mar

Answer 5

How? Lol

Answer 6

what is the initial amount of bacteria?

Answer 7

Im confused lol

Answer 8

"Henry is conducting an experiment with 800 bacteria."

He started with how many of them?

Answer 9

800

Answer 10

That is right!

Now

"He found the exponential growth rate to be 2.7% per hour"
what is the rate (in decimal) at which the bacteria numbers growing and increasing?

Answer 11

0.027 per hour? @3mar

Answer 12

That is very good!

Now, which function\relation\formula are you familiar with the exponential growth?

Answer 13

the formula it has at the top?

Answer 14

Great!
So do you know what b, r, and t stand for?
\[\LARGE \color{Coral}{y = b(1+r)^t }\]

Answer 15

@itskels2001
Do you follow?

Answer 16

Let me know when you are back!

Answer 17

Sorry about that, I am back. @3mar

Answer 18

r = rate and t=time?

Answer 19

and b?

Answer 20

Im not sure

Answer 21

\(\Large b\) is the initial amount\value\number that it will decreases or increases!

Answer 22

oh okay

Answer 23

so can you plug in these values in that formula!?

Answer 24

Let me know when you are back!