contestada

A particular strain of bacteria triples in population every 45 minutes. Assuming you start with a 50 bacteria in a petri dish, how many bacteria will there be in 4.5 hours?

Respuesta :

4.5 hours in minutes = 270
Every 45 minutes, bacteria triples
You start with 50
Divide 270 (total time) by 45 (every time bacteria triples)
270/45 = 6
[tex]50 * (3^6)[/tex]
[tex]3^6 = 729[/tex]
[tex]50 * 729[/tex]
36,450 bacteria
apologiabiology
find how long you take

45 minutes=0.75 hours

0.75 times x=4.5
divide both sides by 0.75
x=6

there are six 45 minute sections in 4.5 hours

tripples every time

triples 6 times
times 3 six times
times 3^6

start with 50
50 times 3^6=36450 bacteria

Otras preguntas