Percent Word Problems

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100. It represents how much of a whole is being considered.

Front

How do you calculate the percentage of a part compared to a whole?

Back

To calculate the percentage of a part compared to a whole, divide the part by the whole and then multiply by 100. Formula: (Part/Whole) x 100.

Front

What does it mean if a number represents 75% of a total?

Back

If a number represents 75% of a total, it means that the number is three-quarters of the total amount.

Front

How do you find the total when given a percentage and a part?

Back

To find the total when given a percentage and a part, divide the part by the percentage (in decimal form). Formula: Total = Part / (Percentage/100).

Front

What is the formula to find the percentage increase or decrease?

Back

The formula to find the percentage increase is: ((New Value - Old Value) / Old Value) x 100. For decrease, it is: ((Old Value - New Value) / Old Value) x 100.

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 then multiply by 100. Formula: (Numerator/Denominator) x 100.

Front

What is the relationship between percentages, fractions, and decimals?

Back

Percentages, fractions, and decimals are different ways of expressing the same value. A percentage is a fraction out of 100, and a decimal is a fraction expressed in base 10.

Front

How do you calculate the percentage of a weight that is a specific material?

Back

To calculate the percentage of a weight that is a specific material, divide the weight of the material by the total weight and multiply by 100. Formula: (Weight of Material / Total Weight) x 100.

Front

What is the significance of rounding in percentage calculations?

Back

Rounding in percentage calculations is significant because it simplifies the results, making them easier to interpret, but it can also lead to slight inaccuracies.

Front

How do you determine what percent one number is of another?

Back

To determine what percent one number is of another, divide the first number by the second number and multiply by 100. Formula: (Part/Whole) x 100.