Unit 6 Review

Front

What is the formula to calculate percent change?

Back

Percent Change = \frac{(New Value - Old Value)}{Old Value} \times 100%.

Front

Tom's weekly salary increased from $240 to $288. What was the percent of change?

Back

20%.

Front

How do you convert a decimal to a percent?

Back

Multiply the decimal by 100 and add a percent sign. For example, 0.09 becomes 9%.

Front

Change the decimal 0.09 into a percent.

Back

9%.

Front

What is 34% of 150?

Back

51.

Front

How do you find the original number if you know the percent and the result?

Back

Use the formula: Original Number = \frac{Result}{Percent} \times 100.

Front

What is 10% as a decimal?

Back

0.1.

Front

If 128 pounds is increased to 155 pounds, what is the percent of change?

Back

21.09%.

Front

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

Back

It means to calculate how much of that number corresponds to a given percentage.

Front

If 20% of a number is 40, what is the number?

Back

200.