Percent Applications

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 percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 25% of 200, calculate 200 x 0.25 = 50.

Front

What is a tip and how is it calculated?

Back

A tip is a small amount of money given to someone for their service, often calculated as a percentage of the total bill.

Front

If a meal costs $12.00 and the tip is 25%, how much is the tip?

Back

$3.00

Front

What is simple interest?

Back

Simple interest is calculated on the principal amount only, not on the interest accrued over time.

Front

How do you calculate simple interest?

Back

Simple interest can be calculated using the formula: Interest = Principal x Rate x Time.

Front

If Mr. Peterson paid $1,020 in interest at a rate of 5% for 3 years, how much did he borrow?

Back

$6,800

Front

What is percent error?

Back

Percent error is a measure of how inaccurate a measurement is, expressed as a percentage of the true value.

Front

How do you calculate percent error?

Back

Percent error = |Estimated Value - Actual Value| / Actual Value x 100%.

Front

If the estimated attendance was 15,000 and actual attendance was 12,500, what is the percent error?

Back

20%.