Percent of a Number

Front

What does it mean to find a percentage of a number?

Back

Finding a percentage of a number involves calculating a fraction of that number based on the percentage value. For example, to find 20% of 200, you multiply 200 by 0.20.

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How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 25% becomes 0.25 (25 ÷ 100).

Front

What is the formula to calculate a percentage of a number?

Back

The formula to calculate a percentage of a number is: (Percentage / 100) * Number.

Front

If 100% of a number is $200, how do you find 20% of that number?

Back

To find 20% of $200, multiply $200 by 0.20, which equals $40.

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What is 50% of a number?

Back

50% of a number is equivalent to half of that number. For example, 50% of 250 is 125.

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How do you calculate a tip as a percentage of a total bill?

Back

To calculate a tip as a percentage of a total bill, multiply the total bill amount by the tip percentage (as a decimal). For example, for a $25 bill with a 10% tip, calculate $25 * 0.10 = $2.50.

Front

If 10% of a number is $12, how do you find 5% of that number?

Back

If 10% is $12, then 5% is half of that amount. Therefore, 5% is $6.

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What is the relationship between percentages and fractions?

Back

Percentages can be expressed as fractions. For example, 25% is equivalent to 25/100, which simplifies to 1/4.

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How do you find 10% of any number?

Back

To find 10% of any number, divide the number by 10. For example, 10% of 50 is 50 ÷ 10 = 5.

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What is the significance of knowing how to calculate percentages in real life?

Back

Calculating percentages is important in various real-life situations, such as determining discounts, tips, taxes, and interest rates.