Ratios and Proportions Percent Change Proportion Statement showing

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Ratios and Proportions Percent Change

Ratios and Proportions Percent Change

Proportion – Statement showing two ratios as equal

Proportion – Statement showing two ratios as equal

All of these are proportions because the cross products are equal

All of these are proportions because the cross products are equal

Example

Example

Example

Example

Practice Problems • Solve each proportion.

Practice Problems • Solve each proportion.

Practice Problems • Solve each proportion.

Practice Problems • Solve each proportion.

Practice Problems • Solve each proportion.

Practice Problems • Solve each proportion.

Practice Problems

Practice Problems

Capture - Recapture Complete The worksheet Answers all the questions on the bottom of

Capture - Recapture Complete The worksheet Answers all the questions on the bottom of sheet Turn in one sheet person

Capture / Recapture - Example

Capture / Recapture - Example

Capture / Recapture - Example

Capture / Recapture - Example

Capture / Recapture - Example

Capture / Recapture - Example

Percent Change

Percent Change

Vocabulary • Percent Change – When an increase or decrease is expressed as a

Vocabulary • Percent Change – When an increase or decrease is expressed as a percentage • Percent Increase – A change that is greater than the original • Percent Decrease – A change that is less than the original

Practice Problems • State whether each percent of change is a percent of increase

Practice Problems • State whether each percent of change is a percent of increase or a percent of decrease. Then find each percent of change. Round to the nearest whole percent.

Practice Problems • State whether each percent of change is a percent of increase

Practice Problems • State whether each percent of change is a percent of increase or a percent of decrease. Then find each percent of change. Round to the nearest whole percent.

Practice Problems

Practice Problems

Practice Problems

Practice Problems

Practice Problems • Use cross product to determine whether each pair of ratios form

Practice Problems • Use cross product to determine whether each pair of ratios form a proportion.

Practice Problems • Use cross product to determine whether each pair of ratios form

Practice Problems • Use cross product to determine whether each pair of ratios form a proportion.

Practice Problems • Use cross product to determine whether each pair of ratios form

Practice Problems • Use cross product to determine whether each pair of ratios form a proportion.

Practice Problems • Solve each proportion.

Practice Problems • Solve each proportion.

Practice Problems • Solve each proportion.

Practice Problems • Solve each proportion.

Practice Problems

Practice Problems

Practice Problems

Practice Problems

Practice Problems • State whether each percent of change is a percent of increase

Practice Problems • State whether each percent of change is a percent of increase or a percent of decrease. Then find each percent of change. Round to the nearest whole percent.

Practice Problems • State whether each percent of change is a percent of increase

Practice Problems • State whether each percent of change is a percent of increase or a percent of decrease. Then find each percent of change. Round to the nearest whole percent.

Practice Problems

Practice Problems

Practice Problems

Practice Problems

Homework – Write in planner • 3 -6 Ratios and Proportions (2 pages) •

Homework – Write in planner • 3 -6 Ratios and Proportions (2 pages) • 3 -7 Percent Change (2 pages) Even Problems

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