Solved: What is 15 Percent of 30? = 4.5 | 15% of 30 = 4.5

Percentage Calculator: 15 Percent of 30

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Calculation of What is 15 percent of 30:

15 percent * 30 =

(15 / 100) * 30 =

(15 * 30) / 100 =

450 / 100 =

4.5

Now we have the answer: 15% of 30 = 4.5. Alternatively, we can express it as: 4.5 is equivalent to 15 percent of 30.

Mathematical Notation: 15% * 30 = (15 / 100) * 30 = (15 * 30) / 100 = 450 / 100 = 4.5

Formula we can use to solve our problem:

Formula: X/100 × Y

Let's use the example of "What is 15% of 30?" to understand the calculation:

= 15/100 × 30 = 4.5

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

Solution for "What is 15 percent of 30" with Step-by-step guide:

Step 1: Start with the given output value, which is 4.5.

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

Step 3: From Step 1, we know that 4.5 is equivalent to 100%.

Step 4: Similarly, we can determine that 'x' represents 15% of the value.

Step 5: This leads us to two simple equations:

Equation 1: 30 equals 100%
Equation 2: 'x' equals 15%

Step 6: To solve for 'x', we divide equation 1 by equation 2, considering that both equations have the same unit (%). Thus, we obtain:
30 / x = 100% / 15%

Step 7: By taking the reciprocal of both sides of the equation obtained in Step 6, we have:
x / 30 = 15 / 100
⇒ x = 4.5

Therefore, we conclude that 15% of 30 is equal to 4.5.

I hope explanation above helps you understand how to calculate 15 percent of 30

Written by: Dr. Mohammad Monir Uddin

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

Quick Tip - How Calculate 15 percent of 30 on calculator

If you want to use a calculator to know what is 15 percent of 30, simply enter 15 ÷ 100 × 30 and you will get your answer which is 4.5

Frequently Asked Questions on What is 15 percent of 30

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 15% of 30?

15 percent of 30 is 4.5.

3. How to calculate 15 percent of 30?

Multiply 15/100 by 30 = (15/100) * 30 = (15 * 30) / 100 = 4.5.

2. 15 of 30?

15 of 30 = 4.5.

4. what is 15 percent of 30 dollars?

4.5 dollars.

Sample questions and answers

Question: At a high school 15 percent of seniors went on a mission trip. There were 30 seniors. How many seniors went on the trip?

Answer: 4.5 seniors went on the trip.

Question: 15 percent of the children in kindergarten like Thomas the Train. If there are 30 kids in kindergarten, how many of them like Thomas?

Answer: 4.5 kids like Thomas the Train.

What is 15 percent of 30? (15% of 30?)

Answer: 15 percent of 30 is 4.5. Alternatively, we can say that 4.5 is equivalent to 15% of 30.