Question

how do you write 0.4 as a percentage? write your answer using a percent sign (%).

Explanation:

Step1: Recall decimal to percent conversion

To convert a decimal to a percentage, multiply the decimal by 100 (or move the decimal point two places to the right).
For \( 0.4 \), multiply by 100: \( 0.4\times100 = 40 \).

Step2: Add the percent sign

After multiplying by 100, we add the percent sign (\%). So \( 0.4 \) as a percentage is \( 40\% \).

Answer:

\( 40\% \)