Question

A bedroom has the following dimensions:
3m long x 4 m wide x 2.5 m high


Air typically has around 4,000 bacteria per cubic meter. Based on the dimensions of the bedroom above, about how many bacteria are present in the room?
40,000 bacteria
30,000 bacteria
120,000 bacteria
48,000 bacteria

Answer 1

How do you do this problem?

Answer 2

well, if you already have the problem put out, you will then need to figure out the answer. just take what you typed, and multiply them together and what do you get?

Answer 3

= 30

Answer 4

then once you get that answer, add however many zeros you need, 3, and you have your answer...

Answer 5

because they added zeros to get the bacteria cubic meter

Answer 6

do you get it now?

Answer 7

Ye. so it will be 30,000

Answer 8

correct

Answer 9

No. The volume is 3(4)(2.5) which is 30 m^3
Each of the 30 cubic meters has 4000 bacteria. So 2 cubic meters has 8000 bacteria and 3 cubic meters has 12000 bacteria and so on.
How many bacteria in 30 cubic meters?

Answer 10

So it had to be 30,000 x 4,000 = 120,000