2.1, 2.3, & 2.4 Writing and Solving Equations

Slides:

Advertisements

Similar presentations

Hosted by Fascination Entertainment Group. Event Details Where ◦ Fascination Park ◦ Austin location When ◦ July 30 ◦ 7 p.m. to midnight Who ◦ Coaster.

Advertisements

Chapter 2 Equations and Inequalities in One Variable Section 7 Problem Solving: Geometry and Uniform Motion.

Kinetic energy. Equations The kinetic energy of a moving object is one half of the product of its mass multiplied by the square of its velocity. or.

Finding angles with algebraic expressions

Warm Up:. Linear Pair I: Two angles that share a common vertex and together make a straight line (180°). M: What is the missing measure?

Algebra I by James Wenk © 2003 published by TEACHINGpoint as part of the Expert Systems for Teachers Series 1 3) 180 Rule for Triangles Objective-To find.

Solving equations that involve formulas.

Complementary, Supplementary, and Vertical Angles x Y X + Y = 180 ° A B A + B = 90 ° C D E FG DCE = m m FCG.

Using Angle Relationships

Applications of Geometry Example 1: The perimeter of a rectangular play area is 336 feet. The length is 12 feet more than the width. Determine the dimensions.

Complementary Angles and Supplementary Angles

2.2/2.4: Complementary & Supplementary Angles Day 3 I can recognize complementary angles. I can recognize supplementary angles.

Angles Relationships Unit 7 Math 7.

§ 3.3 Geometric Problems. Angel, Elementary Algebra, 7ed 2 Solving Geometric Problems Two angles are complementary angles if the sum of their measures.

Answers to 3.1 Worksheet #1 6) 7) 8) 9)

 The three angles of a triangle measure x, 2x and x-20 degrees. Write and solve an equation for x. What are the three angle measures? (Hint: remember.

3-2: Solving Systems of Equations using Elimination

CRCT Review. At a concession stand, a hamburger is 25 cents more than twice the cost of a hotdog. If h represents the cost of a hamburger and d represents.

Complementary and Supplementary Angles

Geometry Section 1.6 Special Angle Pairs. Two angles are adjacent angles if Two angles are vertical angles if.

Analytic Geometry Unit 2

Problem Solving in Geometry. Geometry Geometry is about the space you live in and the shapes that surround you. For thousands of years, people have studied.

Section 1-6 Angle Pair Relationships. Vertical angles Formed when two lines intersect. Vertical Angles are Congruent. 1 2.

Three Types of Special Angles

Honors Geometry Section 1.3 part2 Special Angle Pairs.

Conservation of Energy System Energy of Gravitational Interaction -- Gravitational Potential Energy If the system contains Earth and an object (or objects),

January 30, 2013 Hmmm… What do you think? Susan played 6 basketball games. Her mean was 11 points. Her median was 9 points. What might each of her scores.

 Today’s Agenda  No Homework due today  Fill in Planner  Practice 2-5  Bell Work  Lesson 2-5 Notes  Today’s Objective  SWBAT define a variable.

Literal Equations. Warm Up In January 2011, the national average for 5 gallons of gas was $ What was the national average for 1 gallon of gas?

 You can use weighted averages to solve uniform motion problems when the objects you are considering are moving at constant rates or speeds.

2.4: Special Pairs of Angles

Making a decision … Now that you know 3 ways to solve a system of equations, how to choose which method to use when solving systems of equations.

2.2 Complementary and Supplementary Angles

4-3 Solving Multiplication Equations Standard : PFA Indicator: P9 (same as 4-2)

Complementary and Supplementary Word Problems

Pythagorean Theorem What’s the Angle?. A Little Story Time...

EXTRA HELP WITH SYSTEMS OF EQUATIONS. SOLVING SYSTEMS OF EQUATIONS USING ELIMINATION Steps: 1. Place both equations in Standard Form, Ax + By = C. 2.

The Substitution Method Objectives: To solve a system of equations by substituting for a variable.

Objective-To find missing angles using rules of geometry. Supplementary Angles- Angles whose sum is 180. a b.

I CAN FIND UNKNOWN ANGLE MEASURES BY WRITING AND SOLVING EQUATIONS. 6.1 Angle Measures.

§ 3.3 Problem Solving in Geometry. Geometry Blitzer, Introductory Algebra, 5e – Slide #2 Section 3.3 Geometry is about the space you live in and the shapes.

SWQ Review 1-1,1-4,1-5,1-6,1-7. Write an equation to represent the relationship “a number decreased by negative 2 is equal to 21.” Then solve the.

1. a) the product of 5 and a number x b) Evaluate when x = -1 2.a) 18 decreased by a number z b) Evaluate when z = a) the quotient of 16 and a number.

Lesson 2.2 Complementary and Supplementary Angles Objective: Recognize complementary and supplementary angles.

Click the mouse button or press the Space Bar to display the answers.

Evaluate 2z + 7 for z =

Solving equations that involve formulas.

Complementary and Supplementary Angles

Adjacent, Vertical, Complimentary and Supplementary Angles

Notes Over 9.6 Quadratic Formula

Coordinate Algebra Practice EOCT Answers Unit 1.

Angles: Setting up Equations

Speed, Distance, Time, Velocity, and Acceleration Quiz Review

Quick Question: The Top Thrill Dragster Coaster is the 2nd

Objective-To find missing angles using rules of geometry.

Coordinate Algebra Practice EOCT Answers Unit 1.

Writing Equations to Find Missing Angles

Math Humor Teacher: Today we are going to learn about complementary angles. Student: Does this mean the angles are nice to each other?

Special Pairs of Angles

1.1 Variables Objective: Students will be able to substitute numbers in for variables and evaluate problems. Students must demonstrate they know how to.

Writing Equations to Find Missing Angles

Coordinate Algebra Practice EOCT Answers Unit 1.

Ch. 1 Test Review.

Coordinate Algebra Practice EOCT Answers Unit 1.

Notebook Response – Changes in Motion Objective: We will calculate the average speed of a marble using a roller coaster model. Create a line graph that.

Advanced Geometry Section 2.2 Complementary and Supplementary Angles

Similarity, Congruence, & Proofs

Presentation transcript:

2.1, 2.3, & 2.4 Writing and Solving Equations Unit 1: September 4, 2014

The population of the United States in July 2007 was about 301,000,000, and the land area of the United States is about 3,500,000 square miles. Write an equation to find the average number of people in the US. Then solve!

Katie is twice as old as her sister Mara. The area of the Hartstein’s kitchen is 182 square feet. This is 20% of the area of the first floor of their house. Let F represent the area of the first floor. Write an equation to represent the situation. Then solve! Katie is twice as old as her sister Mara. The sum of their ages is 24. Write a one-variable equation to represent the situation. Then solve!

Now what steps did you use in solving these equations? INVERSE OPERATIONS!!!!!!

Try a Few! d – 8 = 17 2. v + 12 = –5 3. b – 2 = –11 4. –16 = m + 71 5. 29 = a – 76 6. –14 + y = –2

Try another! Kingda Ka in New Jersey is the tallest and fastest roller coaster in the world. Riders travel at an average speed of 61 feet per second for 3118 feet. They reach a maximum speed of 187 feet per second. If x represents the total time that the roller coaster is in motion for each ride, write an expression to represent the situation. (Hint: Use the distance formula d = rt.) b. How long is the roller coaster in motion?

Creating and Solving! Working for Apple after college, you work In the production of headphones department. For general expenditures, it cost 5,000,000 a month, And for parts/production, the headphones cost $2.50 Per headphone. Create an equation to model the Cost of Apple for the headphones. a) If in the month of October, the total cost was 6.2 million, how many headphones were produced? b) How much should Apple charge for the headphones, If Apple wants to have a revenue of 11.2 million? c) What would the revenue be for Apple?

Try a Few –12n – 19 = 77 2. 17 + 3f = 14 3. 15t + 4 = 49 4. 𝑢 5 + 6 = 2 5. 𝑑 − 4 + 3 = 15 6. 𝑏 3 – 6 = –2

More Word Problems Supplementary angles are angles whose measures have a sum of 180º. Complementary angles are angles whose measures have a sum of 90º. Find the measure of an angle whose supplement is 10º more than twice its complement. Let 90 – x equal the degree measure of its complement and 180 – x equal the degree measure of its supplement. Write and solve an equation.

A few to try 1. 5 + 3r = 5r – 19 2. –9 + 8k = 7 + 4k 3. 8q + 12 = 4(3 + 2q) 4. 3(5j + 2) = 2(3j – 6)