Math 6 :: Percents & Rates Word Problems Flashcard Prep

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 a percent of a number?

Back

To calculate a percent of a number, multiply the number by the percent (in decimal form). For example, to find 20% of 50, calculate 50 * 0.20 = 10.

Front

What is the formula to find what percent one number is of another?

Back

The formula is (part/whole) * 100. For example, to find what percent 78 is of 450, calculate (78/450) * 100.

Front

If 4% of a number is 25, what is the number?

Back

To find the number, divide 25 by 0.04. The number is 625.

Front

What does 'best buy' mean in terms of price per item?

Back

'Best buy' refers to the option that offers the lowest price per item, making it the most economical choice.

Front

How do you find the price per item in a pack?

Back

To find the price per item, divide the total price of the pack by the number of items in the pack.

Front

If a pack of 9 tennis balls costs $18, what is the price per ball?

Back

The price per ball is $18 / 9 = $2.

Front

What is the average speed formula?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken. Formula: Speed = Distance / Time.

Front

If an airplane travels 1632 miles in 6 hours, what is its speed?

Back

The speed is 1632 miles / 6 hours = 272 mph.

Front

What is a rate in math?

Back

A rate is a ratio that compares two different kinds of quantities, often expressed as a fraction.