Write the decimal as a percent. 1.45
The correct answer and explanation is:
Correct Answer: 145%
Explanation:
To convert a decimal to a percent, you multiply the decimal by 100 and then add a percent sign (%).
Step-by-step:
- Start with the decimal:
1.451.45 - Multiply by 100:
1.45×100=1451.45 \times 100 = 145 - Add the percent sign:
145%145\%
So, 1.45 as a percent is 145%.
Why this works:
The word “percent” comes from the Latin per centum, meaning per hundred. So when you convert a decimal like 1.45 to a percent, you’re expressing how many parts out of 100 that number represents.
- 1.0 as a decimal means 100%, a complete whole.
- So 1.45 means 1 whole (100%) plus 0.45 (or 45%).
Therefore, it equals 145%.
This conversion is useful in many real-life contexts:
- Finance: A 1.45 interest multiplier means a 145% return.
- Grading: Scoring 1.45 on a 1.0 scale might mean over-performance—145%.
- Sales: If a price increases by 1.45 times, that’s a 145% price relative to the original.
Shortcut Tip:
To quickly convert any decimal to a percent:
- Move the decimal two places to the right
- Add %
Example:
- Decimal: 1.45
- Move decimal → becomes 145
- Add % → 145%