18 is what percent of 30
The Correct Answer and Explanation is:
To find what percent 18 is of 30, we can follow a simple formula:
[
\text{Percent} = \left( \frac{\text{Part}}{\text{Whole}} \right) \times 100
]
Here, Part is 18, and Whole is 30. Plugging in the values:
[
\text{Percent} = \left( \frac{18}{30} \right) \times 100
]
Now, let’s calculate it step by step:
- First, divide 18 by 30:
[
\frac{18}{30} = 0.6
]
- Next, multiply 0.6 by 100 to convert it into a percentage:
[
0.6 \times 100 = 60
]
So, 18 is 60% of 30.
Explanation:
To understand this concept, let’s break down the percentage calculation process.
A percentage represents a portion out of 100. To calculate what percent one number is of another, you need to determine the fraction of the part (18) relative to the whole (30). When you divide the part by the whole, you get a decimal. Multiplying this decimal by 100 converts it into a percentage.
In this case, dividing 18 by 30 gives 0.6, which means that 18 is 60% of 30 because 0.6 is equivalent to 60 out of 100.
This method is commonly used in various practical applications, such as calculating discounts, grades, or comparing quantities. It’s essential to know how to calculate percentages because it allows you to express parts of a whole in a standardized way, making comparisons and calculations easier to understand.
In summary, 18 is 60% of 30, and the formula ( \frac{18}{30} \times 100 ) is a reliable method to calculate percentages for any two numbers where one represents a portion of the other.