Chapter 10 L10-1 Notes: Ratios. Vocabulary A ratio is a comparison of two numbers by division.

Slides:

Advertisements

Similar presentations

Ratio, Proportion and Similarity

Advertisements

CN #3 Ratio and Proportion

Proportions  A proportion is an equation with a ratio on each side. It is a statement that two ratios are equal.  3 = 6 is an example of a proportion.

Ratios and Proportions

Writing and Solving Proportions. Proportions Proportion is an equation stating that two ratios are equivalent. Proportional are two quantities that form.

Using Cross Products Lesson 6-4. Cross Products When you have a proportion (two equal ratios), then you have equivalent cross products. Find the cross.

Fractions, Decimals and Percents

MATH 2A CHAPTER EIGHT POWERPOINT PRESENTATION

7 th Grade Pre-algebra Chapter 6 Notes. 6.1 Ratios and Rates Vocabulary Ratio: a comparison of two numbers by division. Rate: a ratio of two measurements.

Algebra I Vocabulary Chapter 2. Equations that have the same solution(s) are called.

7.1 and 7.2 Ratios and Proportions

7.1 Ratio and Proportion Textbook page 357.

1 ratios 9C5 - 9C6 tell how one number is related to another. may be written as A:B, or A/B, or A to B. compare quantities of the same units of measurement.

Unit Three Ratios and Proportional Relationships Why do we learn vocabulary in math??

ratio percent Write fractions as percents and percents as fractions.

Algebra 1 Notes 3.6 Warm Up Vocabulary 3.6 Ratio: Comparison of two numbers by division. Can be expressed 3 ways. Proportion: Equation stating.

4.2 Solving Rational Equations 1/30/2013. Vocabulary Rational Equation: Equation that shows two rational expressions or fractions are equal. Example:

Vocabulary  Rational Expression – a ratio of 2 polynomial expressions.  Operations with rational numbers and rational expressions are similar.  Just.

Chapter 7: Similarity.

PRESENTATION 9 Ratios and Proportions

Warm Up Find the slope of the line through each pair of points. 1. (1, 5) and (3, 9) 2. (–6, 4) and (6, –2) Solve each equation. 3. 4x + 5x + 6x = 45 4.

Proportional Reasoning Today you will learn to: test if ratios can form a proportion. use cross products. M7.A.2.2.3: Use proportions to determine if two.

Proportions Objectives: 1) solve equations with variables in numerators 2) Solve equations with variables in denominators.

Identifying and Writing Proportions 4-2

Percents and Fractions. Vocabulary A percent is a ratio that compares a number to 100. It means “per 100.” 49 out of 100 is 49%.

Warm up:Write each fraction in simplest form.

Organize Binders -Move ch. 3 notes to “old notes” -Move review sheet to “review” -Move Quiz to “quiz” -Throw away old homework.

Ratio, Rate, Proportion, and Percent. Ratio  Comparison of two numbers by division  Can be written three different ways 4 to 9 4 :

{ Section 8.1 Ratio and Proportion OBJECTIVE: To write ratios and solve proportions To write ratios and solve proportions BIG IDEA:Proportionality ESSENTIAL.

Warm-Up Solve each equation for x. 1) 3x = 5 2) 2x – 1 = 10 3) 5x + 3x = 14.

6.1.1 RATIOS, PROPORTIONS, AND THE GEOMETRIC MEAN Chapter 6: Similarity.

Solving Proportions. 2 ways to solve proportions 1. Equivalent fractions (Old) Cross Products (New)

1. What Are You Learning? I CAN solve proportions. 2.

Friday, December 3 Objective: SWBAT find ratios and rates solve proportions Homework: Practice 4-1 Bell Work (write in simplest form)

Monday October 18,2010 Review for Benchmark Assessment on Rates, Ratios and Proportions.

Write each fraction in simplest form. Simplify each product.

Cross Products and Proportions

  A ratio is a way to compare two quantities that are measured in the same units by using division  45 : 100 Ratio.

Math Pacing Ratios and Proportions Solve each equation

Module 7 Test Review. Understanding Ratios Ratios can be written in three ways –Using the word “to” 18 to 13 –As a fraction –Using a colon : 18:13 Write.

Pre-Algebra 7-1 Ratios and Proportions Warm Up Write each fraction in lowest terms. Pre-Algebra 7-1 Ratios and Proportions

Vocabulary ratio: a comparison of two numbers through division often expressed as a fraction. Proportion: An equation that states that two ratios are equal.

ALGEBRA READINESS LESSON 7-1 Warm Up Lesson 7-1 Warm-Up.

Ratios & Proportional Relationships. Ratios Comparison of two numbers by division. Ratios can compare parts of a whole or compare one part to the whole.

Solving a Proportion by “Cross” Multiplying

Find the common denominator. Make equivalent fractions.

A proportion is an equation that states two ratios are equal

8.1 Multiplying and Dividing Rational Expressions

Equivalent Ratios By, Mrs. Muller.

Proportions and Percent Equations

Lesson 5-1: Using Proportions

Lesson 6.1 How do you find ratios and unit rates?

Proportions TeacherTwins©2014.

Lesson 3.1 How do you solve one-step equations using subtraction, addition, division, and multiplication? Solve one-step equations by using inverse operations.

Ratios involving complex fractions

By, Mrs. Muller Proportions.

Proportions Chapter 5 Section 5.3.

Rational Expressions and Equations

Section 8.1 Ratio and Proportion

Chapter 3: Solving Equations

7.1 Ratio and Proportion.

Lesson 6 Ratio’s and Proportions

Understanding Proportions

Ratio A ratio is a comparison of two numbers such as a : b. Ratio:

Identifying and Writing Proportions 4-2

Using Cross Products Chapter 3.

L5-2 Notes: Simplifying Fractions

Presentation transcript:

Chapter 10 L10-1 Notes: Ratios

Vocabulary A ratio is a comparison of two numbers by division.

Vocabulary A common way to express a ratio is as a fraction in simplest form also known as an equivalent ratio.

Write a RATIO in Simplest Form Write the ratio that compares the number of footballs to the number of tennis balls.

On Your Own… Write each ratio as a fraction in simplest form drums to 18 trumpets 2. 8 gerbils to 36 pets

Vocabulary A rate is a ratio of two measurements having different kinds of units. A unit rate is a rate simplified to have a denominator of 1.

On Your Own… Write each ratio as a unit rate. 1. $9 for 3 cases of soda meters in 2 seconds

Chapter 10 L10-2 Notes: Solving Proportions

Vocabulary Proportion is an equation that shows that two ratios are equivalent. For two ratios to form a proportion, their cross products must be equal.

Solve a Proportion When one value in a proportion is unknown, you can use cross products to solve the proportion. 1.

Solve a Proportion 2.

On Your Own.. Solve each proportion