7 Lesson 27 - Part, Percent & Whole

Front

What is a percent?

Back

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

Front

How do you calculate the percentage of a number?

Back

To calculate the percentage of a number, multiply the number by the percentage (in decimal form) and then divide by 100.

Front

What is the formula to find the whole when given a part and a percent?

Back

The formula is: Whole = Part / (Percent / 100).

Front

If 35% of a number is 56, how do you find that number?

Back

You can find the number by using the formula: Number = Part / (Percent / 100). In this case, Number = 56 / (35 / 100) = 160.

Front

What is the relationship between part, percent, and whole?

Back

The relationship is defined by the equation: Part = (Percent / 100) * Whole.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and then multiply by 100.

Front

What is the percentage of questions answered incorrectly if 22 out of 40 questions were wrong?

Back

To find the percentage, use the formula: (Incorrect Answers / Total Questions) * 100. So, (22 / 40) * 100 = 55%.

Front

How do you find 9% of a number?

Back

To find 9% of a number, multiply the number by 0.09 (which is 9% in decimal form).

Front

What is the process to find a percentage increase?

Back

To find a percentage increase, subtract the original value from the new value, divide by the original value, and then multiply by 100.

Front

What is the process to find a percentage decrease?

Back

To find a percentage decrease, subtract the new value from the original value, divide by the original value, and then multiply by 100.