Aculture of 1.08×1015 bacteria is in petri dish a. a culture of 2.7×1011 bacteria is in petri dish b. how many times greater is the number of bacteria in petri dish a than petri dish b? explain how do this without having to type a million zeroes! ?

4 * 10^3  or 4000

Step-by-step explanation:

A = 1.08 * 10 ^ 15

B = 2.7 * 10 ^ 11

we want to divide them

1.08 * 10 ^ 15

2.7 * 10 ^ 11

when we divide  scientific notation, we divide the numbers, and subtract the exponents

(1.08/2.7) * 10 ^ (15-11)

.4 * 10 ^4

but this is not correct scientific notation because we need 1 number before the decimal

since we have to move the decimal 1 place to the right, we decrease the exponent 1 place

4 * 10 ^ (4-1)

4 * 10^3

this is 4 with 3 zero's

4000