TEST Percents, % of Change, Tips & Tax

TEST Percents, % of Change, Tips & Tax

Assessment

Flashcard

Mathematics

7th - 8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

2.

FLASHCARD QUESTION

Front

How do you calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 25% of 40, calculate 40 * 0.25 = 10.

3.

FLASHCARD QUESTION

Front

What is the formula for calculating % of change?

Back

% of change = (New Value - Original Value) / Original Value * 100.

4.

FLASHCARD QUESTION

Front

What is 115% of 80?

Back

92.

5.

FLASHCARD QUESTION

Front

What is 25% of 40?

Back

10.

6.

FLASHCARD QUESTION

Front

How do you calculate a tip based on a percentage?

Back

To calculate a tip, multiply the total bill by the tip percentage (in decimal form). For example, for a $26 bill with a 15% tip, calculate 26 * 0.15 = 3.90.

7.

FLASHCARD QUESTION

Front

What is the final price of an item after tax?

Back

Final Price = Original Price + (Original Price * Sales Tax Rate). For example, for a $990 TV with 9% tax, the final price is 990 + (990 * 0.09) = 1,079.10.

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