Question

A scientist placed 100 bacteria in a petri dish. The number of bacteria triples every 12 hours. How many bacteria, to the nearest bacterium, will be in the dish after 36 hours?

Answer 1

270

Explanation:

formula for problem:

y = 100(3)^/12

since x is given (36) we just plugin and solve

use the handy dandy graphing calculator and it will give you y = 2700



Answer 2

2700

Explanation:

As per the question the bacteria triple every 12 hours that is,



36/3 = 3

The bacteria will triple thrice in 36 hours.

Thus, 100*3

Then 300*3

Then 900*3

At last the total bacteria count will become 2700 in the petridish.