Question

Scientist use a biomarker to label 4% of the cells in a bacterial culture. If 3.7X10^8 cells in this culture labeled with a biomarker how many cells in a culture not labeled with a biomarker?

Answer 1

`8.88*10^9\ cells`

Explanation:

we know that

4% represent the percentage of cells labeled

so

96% represent the percentage of cells not labeled

Using proportion

Find out how many cells represent 96%

Let

x ----> the number of cells that represent 96%

`(3.7*10^8)/(4)(cells)/(\%)=(x)/(96)(cells)/(\%)\\\\x=3.7*10^8(96)/4\\\\x=88.8*10^8\ cells\\\\x=8.88*10^9\ cells`