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Math Module 1 Lesson 4

Math Module 1 Lesson 4. Equivalent Ratios. Exercise 1. Decide whether or not each of the following pairs of ratios are equal. 1. 6:11 and 42:88 2. 0:5 and 0:20. NYS Core Curriculum lesson 4 Equivalent Ratios. Exercise 2

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Math Module 1 Lesson 4

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  1. Math Module 1 Lesson 4 Equivalent Ratios

  2. Exercise 1 • Decide whether or not each of the following pairs of ratios are equal. • 1. 6:11 and 42:88 • 2. 0:5 and 0:20

  3. NYS Core Curriculum lesson 4 Equivalent Ratios Exercise 2 In a bag of mixed walnuts and cashews, the ratio of walnuts to cashews is 5:6. Determine the amount of walnuts that are in the bag if there are 54 cashews. Use a tape diagram to support your work. Justify your answer by showing that the new ratio you created of number walnuts to number of cashews is equivalent to 5:6.

  4. Lesson 4 exercise 2 continued • Walnuts 54 • Cashews • 54 divided by 6 equals 9. • 5 times 9 equals 45. • There are 45 walnuts in the bag. • The ratio of walnuts to cashews is 45:54. That ratio is 5:6. • 5:6 and 45:54

  5. Problem set example 1 • 1. Use diagrams or the description of equivalent ratios to show that the ratios 2:3, 4:6, and 8:12 are equivalent. • 8:12 4:6 • 8 is 2 times 4; 12 is 3 times 4 4 is 2 times 2; 6 is 3 times 2. • The constant number, c, is 4. The constant number, c, is 2. 4 4 2 2 4 4 4 2 2 2

  6. Problem set sample 2 • Prove that 3:8 is equivalent to 12:32. • a. Use diagrams to support your answer. • 12 is 3 times 4; 32 is 8 times 4 • b. Use the description of equivalent ratios to support your answer. 4 4 4 4 4 4 4 4 4 4 4

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