Respuesta :

8.5*108=918
3.4*105=357
918/357=2.57143

Answer:

2.5*10^3 times greater, or 2500 times greater.

Step-by-step explanation:

Dividing 8.5*10^8 by 3.4*10^5 will yield the desired answer (which is a ratio).  Note:  108 and 105 MUST be written with the symbol " ^ " to denote exponentiation.

8.5*10^8

--------------- = (8.5 / 3.4)*10^(8-5)    =   2.5*10^3

3.4*10^5