PPT-§6.4 Ratios and Proportions

32817 How do we write ratios How do we write and simplify rates How do we decide whether two ratiosrates are proportional Today Well Discuss Definition The ratio of two numbers . Ratios ratios are one number expressed in relation to another by dividing the one number by the other For example the sex ratio of Delaware in 1990 was 343200 females to 322968 males or 106 This can easily be expressed in terms of males to females 9 SPI 6.1.1 Predictions & Conjectures. SPI 6.2.6 Rates & Percents. What is a proportion?. A . proportion. is 2 equivalent ratios.. . Example. : . 6 . = . 3. 20 10. What is a ratio?. A . Ciera. , Miguel, Win. Introduction. What . is anatomy?. The structure of the human body. . It . consists of muscles, skeleton, and proportions.. Introduction. Why is it important?. -To grasp the foundations of not only the human body, but also the proportions.. Outline:. Ratios!. What is a Ratio? . How to Use Ratios? . How to Simplify?. . Proportions!. What is a proportion?. Properties of proportions?. How to use proportions? . Mysterious Problems…. Proportions. What are proportions?. - If two ratios are equal, they form a proportion. Proportions can be used in geometry when working with similar figures.. What do we mean by similar?. - Similar describes things which have the same shape but are not the same size.. Remember to Silence Your Cell . Phone and Put It In Your Bag!. Proportional Variance. Two quantities . vary proportionally. iff as their corresponding values increase or decrease, the ratios of the two quantities are always equivalent.. UNIT 6. Math 7 Plus. So far we have looked at the following ways to use ratios to find unit rates as well as to help us find other equivalent ratios. . GRAPHING IN A COORDINATE PLANE. Best used to make predictions about equivalent ratios. Every . A. rt. . Student . Should Know About . The Vitruvian Man . The Top Five Things . Every Art Student . Should Know About . The Vitruvian Man . Vitruvian Man. 5. The 'Vitruvian Man' is a famous drawing with accompanying notes by . Review: . Midsegment. Theorem. Review: . Midsegment. Theorem. See the two triangles:. What if we compared corresponding sides with proportions?. 40x = 2560. x = 64.  . This is today’s lesson!. Difference Between Proportions. Sometimes we want to see if there is a significant difference between independent groups.. Control group vs. treatment group or placebo group. Men vs. women. Last year vs. this year. Yawn Seed?. Subject. Yawned?. Yes. No. Total. Yes. 10. 4. 14. No. 24. 12. 36. Total. 34. 16. 50. Trial. Number who yawned in yawn seed group. Number who yawned in no yawn seed group. Difference in proportions (yawn. KWL – . Ratios and Rates. What you Know Want to learn What you learned. Chapter . 1 . Notes. Chapter . 1 . Notes. Ch. . 1 . EQs. Lesson 1: . How does finding the GCF help you to solve real-world problems? . Textbook Pages 430-435. Objective. I can solve scale drawing problems using proportions.. Vocabulary. Scale Drawing: . is the same shape but not the same size. A map is a scale drawing. The units are very important.. Original blog posting (October 5, 2017). Toys “R” Us. Declared Chapter 11 bankruptcy protection in September 2017 for US operations. Wants to restructure or remove some of its debts. Will also be doing similar action in Canada.