3 years ago

PLEASE HURRY

Mathematics

2 answers:

snow_lady [41]3 years ago

7 0

Answer:

x = 3 ×10^2

Step-by-step explanation:

To determine how many times larger the culture sample was compared to a week earlier

We divide the values of the present sample to the past sample size

3.9 x 10^5/ 1.3 ×10^2

3.9/1.3 x10^5-3 = 3 ×10^2

Lubov Fominskaja [6]3 years ago

3 0

Answer-

the first box is 3 the second is 10 to the third then the last = 3,000

Step-by-step explanation:

just did it

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