PLR 1.1 Flashcard Solving Percent Problems

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'. For example, 25% means 25 out of 100.

Front

How do you calculate the discount price of an item?

Back

To calculate the discount price, multiply the original price by the discount percentage (as a decimal), then subtract that amount from the original price. Formula: Discount Price = Original Price - (Original Price * Discount Percentage).

Front

If an item costs $50 and is 20% off, what is the sale price?

Back

Sale Price = $50 - ($50 * 0.20) = $50 - $10 = $40.

Front

What is 50% of 200?

Back

50% of 200 is 100, because 50% means half of the total.

Front

How do you find the percentage of a number?

Back

To find the percentage of a number, multiply the number by the percentage (as a decimal). For example, to find 30% of 80, calculate 80 * 0.30 = 24.

Front

What does it mean if a puppy weighs 9 pounds and is 30% of its adult weight?

Back

It means that 30% of the adult weight equals 9 pounds. To find the adult weight, divide 9 by 0.30, which equals 30 pounds.

Front

How do you convert a fraction to a percent?

Back

Front

What is 25% of 80?

Back

25% of 80 is 20, because 80 * 0.25 = 20.

Front

If Emily weighs 120 pounds, how much of her weight is water if 60% of her weight is water?

Back

60% of 120 pounds is 72 pounds, calculated as 120 * 0.60 = 72.

Front

How do you calculate how much money is left after spending a percentage?

Back

To find out how much money is left after spending a percentage, subtract the spent amount from the total. For example, if you spend 25% of $80, you have $60 left.