APA Percent Proportion/Equation Review

Front

What is the formula to calculate the percentage of a number?

Back

Percentage = (Part / Whole) * 100

Front

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

Back

Whole = Part / (Percentage / 100)

Front

What is 34% of a number if the result is 51?

Back

To find the number, use the formula: Number = 51 / (34 / 100) = 150.

Front

How do you calculate 15% of a number?

Back

Multiply the number by 0.15.

Front

If a student scores 85% on a test with 25 questions, how do you find the number of correct answers?

Back

Correct Answers = Total Questions * (Percentage / 100) = 25 * 0.85 = 21.

Front

What is the method to calculate a tip based on a percentage?

Back

Tip = Total Bill * (Tip Percentage / 100).

Front

If a dinner costs $85 and a 20% tip is given, how much is the tip?

Back

Tip = 85 * 0.20 = $17.

Front

What does it mean to round to the nearest whole number?

Back

It means to adjust a number to the closest integer.

Front

How can you express a percentage as a fraction?

Back

Percentage = (Percentage / 100) as a fraction.

Front

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

Back

Percentages can be converted to decimals by dividing by 100, and to fractions by placing the percentage over 100.