PERCENT SOLVERWhat is 45 percent of 20?
Percentage Calculator
Result: 9
Step-by-Step Calculation
- Convert the percentage to a decimal: 45% = 45 ÷ 100 = 0.45
- Multiply the decimal by the number: 0.45 × 20 = 9
- Therefore, 45% of 20 is 9
How to Calculate Percentages
Understanding how to calculate percentages is an essential skill in many areas of life. Here's a general approach:
- Convert the percentage to a decimal by dividing by 100
- Multiply the decimal by the whole number
- The result is the percentage of the whole number
Similar Calculations
| Percentage | Number | Result |
|---|---|---|
| 35% | 20 | 7 |
| 40% | 20 | 8 |
| 50% | 20 | 10 |
| 55% | 20 | 11 |
Nearby Calculations
| Percentage | Number | Result |
|---|---|---|
| 45% | 10 | 4.5 |
| 45% | 15 | 6.75 |
| 45% | 25 | 11.25 |
| 45% | 30 | 13.5 |
Real-World Applications
Understanding 45% of 20 can be useful in various scenarios:
- Tipping: If your restaurant bill is $20, a 45% tip would be $9.
- Discounts: A 45% discount on a $20 item would save you $9, making the final price $11.
- Sales tax: If the sales tax rate is 45%, you'd pay $9 in tax on a $20 purchase.
Exploring the Numbers
The number 20
20 is an interesting number with various properties:
The percentage 45%
45% represents 45/100 of a whole:
Practice Problems
Test your percentage calculation skills:
- What is 45% of 30?
- What is 90% of 20?
- What percentage of 20 is 11.25?
(Answers are left as an exercise for the reader)
Understanding how to calculate 45% of 20 is just the beginning of mastering percentage calculations. By practicing with similar problems and exploring real-world applications, you can develop a strong intuition for percentages and their uses in everyday life.