Finding the part, whole or percentage (6.5BC)

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100. It is often used to compare proportions.

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 percentage?

Back

Whole = Part / (Percentage / 100)

Front

If a product costs $60 and is on sale for 25% off, what is the sale price?

Back

Sale Price = $60 - ($60 * 0.25) = $45.

Front

What does it mean to find the part when given the whole and a percentage?

Back

Finding the part means calculating how much a certain percentage of the whole is.

Front

If 30% of a class of 40 students are girls, how many girls are in the class?

Back

Number of girls = 40 * 0.30 = 12 girls.

Front

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

Back

The part is a portion of the whole, and the percentage represents how much of the whole the part is.

Front

How do you convert a fraction to a percentage?

Back

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

Front

If 15 out of 60 students passed a test, what percentage passed?

Back

Percentage passed = (15 / 60) * 100 = 25%.

Front

What is the total number if 20% of it is 50?

Back

Total = 50 / 0.20 = 250.