1. Let's clarify the context of the number 0.85 to understand how it was derived. 2. Typically, 0.85 could represent a decimal, a probability, a percentage (85%), or a result of a calculation. 3. If 0.85 came from a fraction, for example, \( \frac{17}{20} \), then dividing 17 by 20 gives: $$\frac{17}{20} = 0.85$$ 4. If it was from a percentage, converting 85% to decimal form involves dividing by 100: $$85\% = \frac{85}{100} = 0.85$$ 5. If 0.85 is a result of a formula or calculation, please provide the formula or numbers involved so I can show the exact steps. 6. In summary, 0.85 is a decimal number that can be obtained by dividing 17 by 20 or converting 85% to decimal. 7. Please provide more details if you want a specific derivation.