PERCENT SOLVERWhat is 20 percent of 45?
Percentage Calculator
Result: 9
Step-by-Step Calculation
- Convert the percentage to a decimal: 20% = 20 ÷ 100 = 0.2
- Multiply the decimal by the number: 0.2 × 45 = 9
- Therefore, 20% of 45 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 |
|---|---|---|
| 10% | 45 | 4.5 |
| 15% | 45 | 6.75 |
| 25% | 45 | 11.25 |
| 30% | 45 | 13.5 |
Nearby Calculations
| Percentage | Number | Result |
|---|---|---|
| 20% | 35 | 7 |
| 20% | 40 | 8 |
| 20% | 50 | 10 |
| 20% | 55 | 11 |
Real-World Applications
Understanding 20% of 45 can be useful in various scenarios:
- Tipping: If your restaurant bill is $45, a 20% tip would be $9.
- Discounts: A 20% discount on a $45 item would save you $9, making the final price $36.
- Sales tax: If the sales tax rate is 20%, you'd pay $9 in tax on a $45 purchase.
Exploring the Numbers
The number 45
45 is an interesting number with various properties:
The percentage 20%
20% represents 20/100 of a whole:
Practice Problems
Test your percentage calculation skills:
- What is 20% of 67.5?
- What is 40% of 45?
- What percentage of 45 is 11.25?
(Answers are left as an exercise for the reader)
Understanding how to calculate 20% of 45 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.