What is 40% of $90?
Understand the Problem
The question is asking for 40% of $90. To solve this, we will calculate the percentage by multiplying 90 by 0.40.
Answer
$36$
Answer for screen readers
The answer is $36$.
Steps to Solve
- Convert Percentage to Decimal
First, we convert the percentage into decimal form. To find 40% as a decimal, we divide it by 100.
$$ 40% = \frac{40}{100} = 0.40 $$
- Multiply by the Total Amount
Next, we multiply the decimal form of the percentage by the total amount, which is $90.
$$ 0.40 \times 90 $$
- Calculate the Result
Now we perform the multiplication to find 40% of $90.
$$ 0.40 \times 90 = 36 $$
The answer is $36$.
More Information
Finding a percentage of a total amount is a common calculation in various everyday situations, such as calculating discounts, taxes, and tips.
Tips
- A common mistake is forgetting to convert the percentage into decimal form. Always divide the percentage by 100 before multiplying.
- Another mistake can be misplacing the decimal point during multiplication. Double-check calculations to avoid this error.
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