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Lesson 7-1 Example 4

7-1. Lesson 7-1 Example 4. Solve. AGES Omar is 15 years old, and his sister Carmen is 9 years old. In three years, what will be the ratio of Omar’s age to Carmen’s age?. Understand Read the problem. Write what you know. Omar is 15 years old. Carmen is 9 years old.

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Lesson 7-1 Example 4

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  1. 7-1 Lesson 7-1 Example 4 Solve. AGES Omar is 15 years old, and his sister Carmen is 9 years old. In three years, what will be the ratio of Omar’s age to Carmen’s age? Understand Read the problem. Write what you know. Omar is 15 years old. Carmen is 9 years old. In three years, Omar will be 18years old, and Carmen will be 12years old.

  2. 7-1 Lesson 7-1 Example 4 Plan Pick a strategy. One strategy is to solve a simpler problem.

  3. 7-1 Lesson 7-1 Example 4 Solve First, write the ratio of their ages in three years. To write the ratio in simplest form, divide the numerator and denominator by a common factor. Divide the numerator and denominator by 3.

  4. 7-1 Lesson 7-1 Example 4 Is there still a common factor? yes Divide the numerator and denominator by 2. Is there still a common factor? no Write the ratio in simplest form. or 3:2

  5. 7-1 Lesson 7-1 Example 4 Check Does the answer make sense? Look over your solution. Did you answer the question?

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