What percentage is equal to 0.45?

To determine what percentage is equal to 0.45, it's essential to understand how to convert a decimal to a percentage. A percentage is a way of expressing a number as a fraction of 100. To convert a decimal to a percentage, you multiply the decimal by 100.

In this case, when you take 0.45 and multiply it by 100, you get:

0.45 × 100 = 45%

This shows that 0.45 is equivalent to 45%. Therefore, the correct correlation between the decimal and the percentage is established clearly through this calculation. Understanding this conversion process is vital in interpreting and working with percentages in various mathematical and nursing contexts.