Academic Fall Exam Review

Front

What is the process to convert a decimal to a percent?

Back

To convert a decimal to a percent, multiply the decimal by 100 and add a percent sign. For example, 0.098 becomes 9.8%.

Front

What does it mean for two figures to be similar?

Back

Two figures are similar if they have the same shape but may differ in size. Their corresponding angles are equal, and their corresponding sides are in proportion.

Front

What is the product of 12.4 and -6.3?

Back

The product of 12.4 and -6.3 is -78.12.

Front

What is the result of dividing -7.8 by -6?

Back

The result of dividing -7.8 by -6 is 1.3.

Front

How do you calculate percent change?

Back

Percent change is calculated by taking the difference between the new value and the old value, dividing by the old value, and then multiplying by 100. Formula: Percent Change = ((New Value - Old Value) / Old Value) * 100.

Front

What is 980% as a decimal?

Back

To convert 980% to a decimal, divide by 100. So, 980% = 9.8.

Front

If a shape's side lengths are in the ratio 2:3, what can be said about their similarity?

Back

If two shapes have side lengths in the ratio 2:3, they are similar because their corresponding sides are proportional.

Front

Back

The simplified value is -78.12.

Front

Back

The simplified value is 1.3.

Front

How do you find the percent decrease from 27 to 18?

Back

Percent decrease = ((27 - 18) / 27) * 100 = 33.33% decrease.