Understanding Percentages

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1/15 cards
What is the definition of a percentage?
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A percentage is a way of expressing a number as a fraction of 100. It is often denoted using the percent sign, %.
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How do you convert a decimal to a percentage?
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To convert a decimal to a percentage, multiply the decimal by 100 and add the percent sign, %.
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How do you convert a percentage to a decimal?
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To convert a percentage to a decimal, divide the percentage by 100 and remove the percent sign.
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What is 25% of 200?
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25% of 200 is 50.
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If there are 50 students in a class and 30% are boys, how many boys are there?
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There are 15 boys in the class.
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How do you express 0.75 as a percentage?
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0.75 as a percentage is 75%.
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What percentage is equivalent to the fraction 1/4?
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The fraction 1/4 is equivalent to 25%.
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A shirt originally costs $40. If the price is increased by 10%, what is the new price?
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The new price is $44.
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How do you calculate the percentage increase between two numbers?
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To calculate the percentage increase, subtract the original number from the new number, divide by the original number, and multiply by 100.
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What does it mean when something is 100%?
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It means it is the whole or complete thing.
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If 70% of a number is 56, what is the number?
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The number is 80.
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How do you find what percent one number is of another?
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To find the percent one number is of another, divide the part by the whole and multiply by 100.
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What is 150% of 80?
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150% of 80 is 120.
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If a discount of 20% is applied to a $50 item, what is the final price?
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The final price is $40.
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How much is a 15% tax on a $200 purchase?
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A 15% tax on a $200 purchase is $30.
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