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Self-check #1 Choose the letter that corresponds to the correct answer. x2 1. In the proportion 3:2 x: 14, what is the value of x? a. 21 b. 20 C. 19 d. 22 2. The measures of the angles of a triangle are in the ratio 3:4 : 5. What are the measures of these angles? a. 30, 40, 50 b. 45, 60, 75 c. 50, 40, 90 d. 18, 72, 90 3. The ratio of the measures of two complementary angles is 2: 3. What are 3. - the measures of the angles? a. 30 and 60 b. 45 and 45 c. 36 and 54 d. 42 & 48 4. What is the fourth term in a proportion if the first three terms are 8, 12, 32 respectively. a. 48 b. 45 C. 84 d. 54 5. If x is to 9 and 9 is to x, find x. a. 9 b. 81 C. 18 d. 10 B. Solve the following. 6. In a photograph, Ezra is 9cm tall and her brother keith is 10 cm tall. Ezra's actual height is 153 cm. What is K eith's actual height? 7. Karen can make 14 cakes in 6 hrs. how many cakes can she make in 15 hrs.?
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