3.1-3.3 Flashcard Review

Front

What is the formula to calculate a percentage increase?

Back

Percentage Increase = (New Value - Original Value) / Original Value × 100

Front

If Ms. Palermo has 20 boxes of markers and buys 420% more, how do you calculate the total number of boxes?

Back

Total Boxes = Original Boxes + (Percentage Increase × Original Boxes) = 20 + (4.2 × 20) = 102 boxes.

Front

What is 200% of a number?

Back

200% of a number is double that number.

Front

How do you find 115% of a number?

Back

Multiply the number by 1.15.

Front

What is the formula to calculate the percentage of a part compared to a whole?

Back

Percentage = (Part / Whole) × 100

Front

In a group of 220 participants, if 121 are female, how do you find the percentage of females?

Back

Percentage of Females = (121 / 220) × 100 = 55%.

Front

What is the formula to calculate the discount price?

Back

Discount Price = Original Price - (Discount Rate × Original Price)

Front

If a laptop costs $600 and has a 10% discount, how do you calculate the discounted price?

Back

Discounted Price = $600 - (0.10 × $600) = $540.

Front

What does it mean to find a percentage of a number?

Back

Finding a percentage of a number means calculating a fraction of that number based on the percentage.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide by 100.