11.1 Ratio and Proportion Objectives: 1.Review ratios 2.Write proportions 3.Solve proportions 4.Use proportions in real life Vocabulary: proportions.

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Presentation transcript:

11.1 Ratio and Proportion Objectives: 1.Review ratios 2.Write proportions 3.Solve proportions 4.Use proportions in real life Vocabulary: proportions

Ratios: 2 to 3 2:3 2/3

Proportions: an equation of 2 ratios Read: “2 is to 3 as 4 is to 6” Read:

Reciprocal Property: If two ratios are equal, then their reciprocals are equal. Apply the reciprocal property to:

Cross Product Property: The product of the extremes equals the product of the means. Apply the cross product property to:

Solve the proportions:

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