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Draw a tape diagram to demonstrate how you found the answer.  4 miles   Mason  Laney 6 miles If Laney ran 930 meters, how far did Mason run? Draw a tape diagram to determine how you found the answer.  620 meters  Mason  Laney  930 meters c. What ratios can we say are equivalent to 2:3? 4:6 and 620:930 Exercise 4: Jose took a long multiple-choice, end-of-year vocabulary test. The ratio of the number of problems Josie got incorrect t o the number of problems she got correct is 2:9. If Josie missed 8 questions, how many did she get right? Draw a tape diagram to demonstrates how you found the answer.  8  Wrong  Right 36 right  4 x 9 If Josie missed 20 questions, how many did she get right? Draw a tape diagram to demonstrate how you found the answer.  20  Wrong  Right 90 right  10 x 9 c. What ratios can we say are equivalent to 2:9? 8:36 and 20:90 d. Come up with another possible ratio of the number Josie got wrong to the number she got right:   10:45 5 x 9 = 45 e. How did you find the numbers? Multiplied 5 x 2 and 5 x 9 f. Describe how to create equivalent ratios: Multiply both numbers of the ratio by the same number (any number you choose). LESSON SUMMARY Two ratios A:B and C:D are equivalent ratios if there is a positive number, c, such that C cA and D = cB. Ratios are equivalent if there is a positive number that can be multiplied by both quantities in one ratio to equal the corresponding quantities in the second ratio. Problem Set Write two ratios that are equivalent to 1:1. 2:2 3:3 Write two ratios that are equivalent to 3:11. 6:22 9:33 a. The ratio of the width of the rectangle to the height of the rectangle is __9_ to __4_.  b. If each square in the grid has a side length of 8mm, what is the length and width of the rectangle? Length = 8mm x 9 = 72mm Width = 8mm x 4 = 32mm For a project in their health class, Jasmine and Brenda recorded the amount of milk they drank every day. 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