Answer:
The diameter of the white blood cell in millimeters is 3 mm.
Step-by-step explanation:
Given : The diameter of a white blood cell under magnification appears to be 0.3 centimeters.
To find : What is the diameter of the white blood cell in millimeters?
Solution :
The diameter of a white blood cell is 0.3 centimeter.
Conversion of centimeter into millimeters,
[tex]1\ cm=10\ mm[/tex]
So, 0.3 cm into mm is
[tex]0.3\ cm=10\times 0.3\ mm[/tex]
[tex]0.3\ cm=10\times \frac{3}{10}\ mm[/tex]
[tex]0.3\ cm=3\ mm[/tex]
Therefore, the diameter of the white blood cell in millimeters is 3 mm.
