Answer :

To convert from milliliters (mL) to deciliters (dL), you need to use a conversion factor. Here's a step-by-step explanation:

1. Understand the conversion factor:
- 1 milliliter (mL) is equal to 0.01 deciliters (dL). This means that to convert milliliters to deciliters, you multiply the number of milliliters by 0.01.

2. Given value:
- You have 0.020 mL that you want to convert to dL.

3. Perform the conversion:
- Multiply the given value in milliliters by the conversion factor to find the equivalent value in deciliters.
- Calculation:
[tex]\[
0.020 \, \text{mL} \times 0.01 = 0.0002 \, \text{dL}
\][/tex]

4. Conclusion:
- Therefore, 0.020 mL is equal to 0.0002 dL.

This is how you convert 0.020 mL to dL, resulting in 0.0002 dL.