Question

A culture of 1.08×1015 bacteria is in petri dish A. A culture of 2.7×1011 bacteria is in petri dish B.

Answer 1

Answer:The number of bacteria in petri dish A is 4000 times greater than petri dish B.

Step-by-step explanation:

Culture of bacteria in petri dish A=$1.08\times10^{15}$

Culture of bacteria in petri dish B=$2.7\times10^{11}$

Dividing culture of bacteria in petri dish A bu culturebacteria in petri dish B ,we get

$\frac{1.08\times10^{15}}{2.7\times10^{11}}=\frac{108\times10^{15-11}}{270}\\\\=\frac{108}{270}\times10^{4}=0.4\times10^4=4000$

Therefore, the number of bacteria in petri dish A is 4000 times greater than petri dish B.

Answer 2

 1.08×10^15
------------------ = 0.4 x 10^4 = 4000
 2.7×10^11

answer
4000 times greater