Percent Review for Flashcard

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 convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and then multiply by 100.

Front

What is the formula for percent change?

Back

Percent Change = ((New Value - Old Value) / Old Value) x 100.

Front

If 4 is 20% of a number, what is the number?

Back

The number is 20. (4 is 20% of 20 because 4 = 0.20 x 20.)

Front

What is simple interest?

Back

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

Front

If Jerry borrowed $4000 at 6% for 5 years, how much interest does he pay?

Back

He pays $1200 in interest. (Interest = 4000 x 0.06 x 5)

Front

What does a 56% decrease mean?

Back

A 56% decrease means that the new value is 56% less than the original value.

Front

How do you find what percent one number is of another?

Back

To find what percent one number is of another, divide the first number by the second number and multiply by 100.

Front

What is the percent equivalent of 6/15?

Back

The percent equivalent of 6/15 is 40%.

Front

If Sam had 9 puppies and now has 4, what is the percent change?

Back

The percent change is a 56% decrease.