PPT-Chapter Five: Ratios and Proportions

Lesson 52 Proportions Chapter Five Ratios and Proportions Lesson 52 Proportions Chapter Five Ratios and Proportions Lesson 52 Proportions Chapter Five Ratios and Proportions Lesson 52 Proportions. 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 5. : Ratios, Rates & Proportions . Section . 4. Solving Proportions. California Standards. Number Sense 1.2: Interpret and use ratios in different contexts.. Number Sense 1.3: Use proportions to solve problems. Use Cross-Multiplication as a method for solving such problems.. An introduction. Ratios express . relationships. 1 dozen eggs . $2.50. 2 cups of flour. 1 cake. This expresses the relationship that 1 dozen eggs cost $2.50. . This expresses the relationship that 2 cups of flour are needed to make 1 cake. 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…. 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. 3/28/17. How do we write ratios?. How do we write and simplify rates?. How do we decide whether two ratios/rates are proportional?. Today We’ll Discuss. Definition:. The . ratio. of two numbers . John Barker & Jennifer Thomas. Nevada Math Project. March 2015. Big Ideas. Ratio – A ratio is used to measure two different things in two different units.. Ex. How far a car drives with how long it takes to get to the destination. . 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. RATIOS. A . ratio. compares the magnitude (size) of two quantities. There are two types of ratios: part-part and part-whole.. RATIOS. A . ratio. compares the magnitude (size) of two quantities. There are two types of ratios: part-part and part-whole.. 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? . Proportion – Learning Outcomes Express quantities as proportions of each other using fractions, decimals, ratios, and percentages. Divide quantities into a given proportion. Express errors as a proportion. Wave Ratios and MeasurementsLength of Wave 2Length of Wave 3Length of Wave 4Length of Wave 1Length of Wave 5eSignal Part 2 Applying Technical Analy Table 17.1 Total and Marginal Revenue for a Monopolist. Figure 17.1 Monopoly Profit Maximization. Figure 17.2 Welfare Analysis of Monopoly. Figure 17.3 Price Discrimination. Figure 17.4 A Perfectly Price-Discriminating Monopolist.