## Percentage Calculator: 10 Percent of 21

Here is a calculator to solve percentage calculations such as what is 10% of 21. You can solve this type of calculation with your values by entering them into the calculator's fields, and click **'Calculate'** to get the Result and Explanation!

### Calculation of What is 10 percent of 21:

10 percent * 21 =

(10 / 100) * 21 =

(10 * 21) / 100 =

210 / 100 =

2.1

Now we have the answer: **10% of 21 = 2.1.** Alternatively, we can express it as: **2.1 is equivalent to 10 percent of 21.**

*Mathematical Notation: 10% * 21 = (10 / 100) * 21 = (10 * 21) / 100 = 210 / 100 = 2.1*

### Formula we can use to solve our problem:

## Solution for "What is 10 percent of 21" with Step-by-step guide:

Step 1: Start with the given output value, which is 2.1.

Step 2: Use the variable 'x' to represent the unknown value.

Step 3: From Step 1, we know that 2.1 is equivalent to 100%.

Step 4: Similarly, we can determine that 'x' represents 10% of the value.

Step 5: This leads us to two simple equations:

- Equation 1: 21 equals 100%
- Equation 2: 'x' equals 10%

Step 6: To solve for 'x', we divide equation 1 by equation 2, considering that both equations have the same unit (%). Thus, we obtain:

21 / x = 100% / 10%

Step 7: By taking the reciprocal of both sides of the equation obtained in Step 6, we have:

x / 21 = 10 / 100

⇒ x = 2.1

Therefore, we conclude that 10% of 21 is equal to 2.1.

I hope explanation above helps you understand how to calculate **10 percent of 21**

### Quick Tip - How Calculate 10 percent of 21 on calculator

If you want to use a calculator to know **what is 10 percent of 21**, simply enter **10 ÷ 100 × 21** and you will get your answer which is **2.1**

## Frequently Asked Questions on What is 10 percent of 21

**1. How do I calculate percentage of a total?**

To calculate percentages of a total: determine the part, divide it by the total, and multiply by 100.

**2. What is 10% of 21?**

10 percent of 21 is 2.1.

**3. How to calculate 10 percent of 21?**

Multiply 10/100 by 21 = (10/100) * 21 = (10 * 21) / 100 = 2.1.

**2. 10 of 21?**

10 of 21 = 2.1.

**4. what is 10 percent of 21 dollars?**

2.1 dollars.

## Sample questions and answers

**Question:** At a high school 10 percent of seniors went on a mission trip. There were 21 seniors. How many seniors went on the trip?

**Answer:** 2.1 seniors went on the trip.

**Question:** 10 percent of the children in kindergarten like Thomas the Train. If there are 21 kids in kindergarten, how many of them like Thomas?

**Answer:** 2.1 kids like Thomas the Train.

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