The human body has a volume of 2 liters of red blood cells. The volume of one red blood cell is 9 x 10^-14 liters. Approximately how many red blood cells are in the human body? Express your answer in scientific notation.

Question

sesca89 · Answer

$$9 \times 10 ^{-14}$$ that's what it's supposed to look like

perl · Answer

did you try division

sesca89 · Answer

Well...yes..but i got ≈ 2.2222222222 • 10^14 and that was wrong

sesca89 · Answer

hold on

sesca89 · Answer

$$\approx 2.222222222 \times 10^{14}$$

perl · Answer

should be 2.22 x 10^13

sesca89 · Answer

okay, can you tell me how you found that?

perl · Answer

https://www.google.com/search?q=2%2F%289*10^%28-14%29%29&ie=utf-8&oe=utf-8

sesca89 · Answer

Oh, well thanks!

mrnood · Answer

if 1 cell is 9*10^-14 l
then 1 litre is 1/9*10^-14 = 1/9   *10^14  = 0.11 *10 ^14

so 2l = 0.22 *10^14

= 2.2 *10^13