To calculate the result of 90 multiplied by 0.40, we follow the basic rules of multiplication. Multiplying by a decimal is equivalent to multiplying by the whole number represented by that decimal and then dividing by the base (in this case, 10 raised to the power of the number of decimal places in the decimal number, which is 10^1 = 10 for 0.40).
Multiplication Process
The calculation is straightforward: 90 * 0.40. Since 0.40 can be seen as 40⁄100 or 4⁄10, we multiply 90 by 4 and then divide the result by 10.
Calculation Steps
First, multiply 90 by 4: 90 * 4 = 360. Then, divide the result by 10 to account for the decimal place: 360 / 10 = 36.
| Calculation Step | Result |
|---|---|
| Multiply 90 by 4 | 360 |
| Divide by 10 | 36 |
The result of 90 * 0.40 is 36. This can be applied in various real-world scenarios such as calculating discounts, percentages of totals, or any other situation where you need to find a fraction of a whole.
Real-World Applications
In finance, for instance, if a product originally priced at 90 is discounted by 40%, the new price would be 90 * 0.40 = 36 off the original price, resulting in a final price of 90 - 36 = 54.
Percentage Calculation
To find 40% of a number, you multiply that number by 0.40. This is a common method for calculating discounts, tips, or any percentage-based calculation.
- Discount Calculation: Original price * discount percentage = discount amount
- Percentage of a Number: Number * percentage in decimal form = result
What is the result of multiplying 90 by 0.40?
+The result of multiplying 90 by 0.40 is 36. This calculation involves multiplying 90 by 4 and then dividing by 10, or simply recognizing that 0.40 represents 40% of the whole number.
In conclusion, the calculation of 90 * 0.40 yields 36, a result that can be applied across various mathematical and real-world scenarios involving percentages and discounts.
