Algebra 1 Notes 3.6 Warm Up 1. 3. 2.4.. Vocabulary 3.6 Ratio: Comparison of two numbers by division. Can be expressed 3 ways. Proportion: Equation stating.

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Presentation transcript:

Algebra 1 Notes 3.6 Warm Up

Vocabulary 3.6 Ratio: Comparison of two numbers by division. Can be expressed 3 ways. Proportion: Equation stating two ratios are equal. Solve by cross products.

Example 1 Determine whether the ratios 4 and form a proportion.

Example 2 Solve the proportion n =

Example 3 Trent goes on a 30 mile bike ride every Saturday. He rides the distance in 4 hours. At this rate, how far can he ride in 6 hours?

Example 4 The scale for the map of Connecticut is 5 inches = 41 miles. The distance between two cities is 2 ½ inches. What is the distance in miles?

Example 5 Solve the proportion: x + 3 =

Example 6 Solve the proportion: x - 5 =