Solved: What is 21 Percent of 42? = 8.82 | 21% of 42 = 8.82

Percentage Calculator: 21 Percent of 42

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Calculation of What is 21 percent of 42:

21 percent * 42 =

(21 / 100) * 42 =

(21 * 42) / 100 =

882 / 100 =

8.82

Now we have the answer: 21% of 42 = 8.82. Alternatively, we can express it as: 8.82 is equivalent to 21 percent of 42.

Mathematical Notation: 21% * 42 = (21 / 100) * 42 = (21 * 42) / 100 = 882 / 100 = 8.82

Formula we can use to solve our problem:

Formula: X/100 × Y

Let's use the example of "What is 21% of 42?" to understand the calculation:

= 21/100 × 42 = 8.82

Check our "What is X Percent of Y" Calculator for more methods and formulas

Solution for "What is 21 percent of 42" with Step-by-step guide:

Step 1: Start with the given output value, which is 8.82.

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

Step 3: From Step 1, we know that 8.82 is equivalent to 100%.

Step 4: Similarly, we can determine that 'x' represents 21% of the value.

Step 5: This leads us to two simple equations:

Equation 1: 42 equals 100%
Equation 2: 'x' equals 21%

Step 6: To solve for 'x', we divide equation 1 by equation 2, considering that both equations have the same unit (%). Thus, we obtain:
42 / x = 100% / 21%

Step 7: By taking the reciprocal of both sides of the equation obtained in Step 6, we have:
x / 42 = 21 / 100
⇒ x = 8.82

Therefore, we conclude that 21% of 42 is equal to 8.82.

I hope explanation above helps you understand how to calculate 21 percent of 42

Written by: Dr. Mohammad Monir Uddin

Associate Professor, Ph.D. (in Mathematics), M.Sc. (in Applied Mathematics)

Quick Tip - How Calculate 21 percent of 42 on calculator

If you want to use a calculator to know what is 21 percent of 42, simply enter 21 ÷ 100 × 42 and you will get your answer which is 8.82

Frequently Asked Questions on What is 21 percent of 42

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 21% of 42?

21 percent of 42 is 8.82.

3. How to calculate 21 percent of 42?

Multiply 21/100 by 42 = (21/100) * 42 = (21 * 42) / 100 = 8.82.

2. 21 of 42?

21 of 42 = 8.82.

4. what is 21 percent of 42 dollars?

8.82 dollars.

Sample questions and answers

Question: At a high school 21 percent of seniors went on a mission trip. There were 42 seniors. How many seniors went on the trip?

Answer: 8.82 seniors went on the trip.

Question: 21 percent of the children in kindergarten like Thomas the Train. If there are 42 kids in kindergarten, how many of them like Thomas?

Answer: 8.82 kids like Thomas the Train.

What is 21 percent of 42? (21% of 42?)

Answer: 21 percent of 42 is 8.82. Alternatively, we can say that 8.82 is equivalent to 21% of 42.