Question

Some species of bacteria can copy their DNA and divide every 40 minutes. If a colony of 100 of these such bacteria begins with a population of 12 at noon, how many will they be by 6pm?

Answer 1

It is 6hours from noon to 6pm.

6h is 360mins

So 360/40 is 9

as there are 100colny and 12 population each

9xl00x12 is l0800.

I hope this answer helps you.

Mark it as brainliest !

Answer 2

Answer:

$51200$

Explanation:

Given:

It has been given that a colony of $100$ of bacteria that copy their DNA and divide every $40$ minutes, begin with a population of $12$ at noon.

To find:

We have to find their number by $6 \ p.m.$

Solution:

There are six hours between $12$ noon and $6 p.m.$

Minutes in one hour = $60$

Minutes in six hours = $6 \times 60 =$ $360$

Therefore, in forty minutes = $\frac{360}{40} = 9$

Now, we will continue with a chain of the following calculations 9 times:

$100 \times 2 = 200\\\\200 \times 2 = 400 \\\\400 \times 2 = 800\\\\800 \times 2 = 1600\\\\1600 \times 2 = 3200 \\\\3200 \times 2 = 6400\\\\6400 \times 2 = 12800 \\\\12800 \times 2 = 25600 \\\\25600 \times 2 = 51200$

Hence, the final answer is 51200.

https://brainly.in/question/5996220?referrer=searchResults

#SPJ3