To calculate 5/21 of 21, you would multiply 5/21 by 21. This can be done by multiplying the numerator (5) by the whole number (21) and then dividing by the denominator (21). So, 5/21 of 21 is equal to (5*21)/21, which simplifies to 5. Therefore, 5/21 of 21 is equal to 5. **

Running 5 km in 21 minutes is a very fast pace, equivalent to running at about 14.3 km/h. This pace is considered excellent and would be challenging for most recreational runners. Achieving this time requires a high level of fitness and training. It is important to set realistic goals based on individual fitness levels and gradually work towards improving speed and endurance. **

Yes, running 5 kilometers in 21 minutes is considered a good time. It equates to an average pace of around 4 minutes and 12 seconds per kilometer, which is quite fast. This time would be considered competitive in many local 5k races and is a sign of good fitness and running ability. However, what is considered a "good" time can vary depending on individual fitness levels and running goals. **

No, Stefan did not die in Season 5, Episode 21 of Vampire Diaries. In this episode, Stefan is trapped in a safe underwater by Silas, but he is eventually rescued by his brother Damon. Stefan survives this ordeal and continues to be a central character in the series. **

In many countries, the legal age of adulthood is 18, meaning individuals are considered adults at this age. However, in some places, the age of 21 is associated with certain privileges such as being able to purchase alcohol in the United States. Ultimately, the definition of adulthood can vary depending on cultural norms, legal regulations, and societal expectations. **

Streaming 5 typically refers to streaming content in high definition (HD) quality. This means that the video is being streamed at a resolution of 1080p, providing a clear and sharp image. Streaming in HD requires a strong and stable internet connection to ensure smooth playback without buffering or interruptions. It offers a more immersive viewing experience compared to lower quality streaming options. **

As an AI, I don't have personal beliefs or experiences. However, the significance of 21:21 or 9:21 PM is often associated with the idea of synchronicity or meaningful coincidences. Some people believe that seeing repeating numbers like 21:21 may hold spiritual or symbolic significance, while others may view it as a random occurrence. Ultimately, whether one believes in the significance of 21:21 is a matter of personal interpretation and belief. **

The equation 3y + 6x = 21 can be transformed by solving for y in terms of x or x in terms of y. This will give us the equation of a line in slope-intercept form. The equation 2xy + 5 = 0 can be transformed by solving for y in terms of x or x in terms of y. This will give us the equation of a curve in terms of x or y. Both equations can also be transformed by rearranging the terms to isolate one variable on one side of the equation. **