2) A boy who is 5.5 feet tall casts a shadow that is 8.25 feet long. The tree next to him casts a shadow that is 18 feet long. How tall is the tree? 3)

Slides:

Advertisements

Similar presentations

Bellringer Chapter 2: Section 5 Equations and Problem Solving.

Advertisements

3.6 Equations and Problem Solving

Rate-Time-Distance Problem By M. L  Two jets leave Denver at 9:00 A.M., one flying east at a speed 50 km/h greater than the other, which is.

4.8 Rate-Time-Distance Problems

OBJECTIVE: SOLVE WORD PROBLEMS INVOLVING UNIFORM MOTION Motion in Opposite Directions.

A solution of a system of two equations in two variables is an ordered pair of numbers that makes both equations true. A solution to two equations (1,

Monday’s Warm Up. Objective By the end of today’s lesson, you will be able to solve an equation for a particular letter, given that the equation contains.

8.4 Word Problems Math 9.

3.4 Applications of Linear Systems. Steps 1) Read and underline important terms 2) Assign 2 variables x and y (use diagram or table as needed) 3) Write.

Notes Over 3.2 Equations and Formulas When using a formula, you must first know what each variable represents. Example The formula for the area of a square.

T = 5 x = 9 x = 6/5 Solve ANSWER How long would it take you To travel 2 miles going 60mph?. 2 minutes.

Quiz Thursday (Algebra range – pages excluding and starred problems)

Section Uniform Motion Problems. Planes An airplane took off from Birmingham to Los Angeles, traveling at an average of 600 miles per hour. One.

Solving systems of equations with 2 variables

(For help, go to Lessons 1-4, 1-5 and 1-6) ALGEBRA 1 LESSON 2-1 Simplify each expression. 1. x – n + 2 – For each number, state its opposite.

1) What are the 2 rules for adding integers? Find the sum.

Lesson 5-8: Problem Solving

Lesson 2-5 Warm-Up.

Chapter 4, Lesson 8 Rate-Time- Distance Problems By:A. s.

 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.

Write each fraction in simplest form. Simplify each product.

(For help, go to Lesson 1-1.) ALGEBRA 1 LESSON 4-8 Write a variable expression for each situation. 1.value in cents of q quarters 2.twice the length 3.number.

Word Problems: Distance, rate and time Type A: Same – Direction of travel A train leaves a train station at 1 pm. It travels at an average rate.

3.6 Distance. 3.6 – Equations & Problem Solving Goals / “I can…” Define a variable in terms of another variable Model distance-rate-time problems.

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

(For help, go to Lesson 1-1.) ALGEBRA 1 LESSON 2-7 Write a variable expression for each situation. 1.value in cents of q quarters 2.twice the length 3.number.

The length of a rectangle is 6 in. more than its width. The perimeter of the rectangle is 24 in. What is the length of the rectangle? What we know: Length.

Define a variable, write an equation and solve. 1. The sum of three consecutive integers is 117. Find the integers. 2. The length of a rectangular garden.

Equations and Problem Solving 9/8/15. Example 1 An airplane takes off from an airport at 7:00 am traveling at a rate of 350 mi/h. Two hours later, a jet.

Length and Width Problems The length of a rectangle is 3 in. more than its width. The perimeter of the rectangle is 30 in. What is the length of the rectangle?

Chapter 3 Motion (Ewen et al. 2005) Objectives: Distinguish between speed and velocity Use vectors to illustrate and solve velocity problems.

8-5 Motion d=rt 9P9: Interpret systems. Types of motion Problems T1) Distance covered is equal (d = d) T2) Distance covered is equal + wind or current.

Solving Equations. Solve: 1-Step Equations Addition & Subtraction r + 16 = -7u – 23 = 21.

 Pages Review Homework. page 192 #25 Let x = an integer Let x+1 = 1 st consecutive integer x+(x+1)=45 2x=44 x=22 x+1=23 22, =45 45=45.

Warm Up David took a drive to town at an average rate of 40 mph. In the evening, he drove back at 30 mph. If he spent a total of 7 hours driving, what.

Aim: Test Review – Problem Solving Course: Math Lit. Do Now: Aim: Test Review – Problem Solving If a family has 6 children, in how many different birth.

Example: cost of bananas at $0.19 each 0.19b Objective.

1. Three times a number increased by 5 results in A number plus twice a number is The sum of three consecutive integers is Twice.

(For help, go to Lesson 1-1.) ALGEBRA 1 LESSON 2-5 Write a variable expression for each situation. 1.value in cents of q quarters 2.twice the length 3.number.

Solving Equations by Lauren McCluskey. DO NOW Solve each equation. 1.3n – 7 + 2n = 8n x = 7x x x = 2(3x + 3) x + 3x = 2(2x.

Algebra 1 The width of a rectangle is 3 in. less than its length. The perimeter of the rectangle is 26 in. What is the width of the rectangle?

Resource –Glencoe Algebra 1

1) What are the 2 rules for adding and subtracting integers? Find the difference.

Chapter 3: Solving Equations 3.6 Equations & Problem Solving.

Lesson Days Equations and Problem Solving Pages

Quiz 1-3 Quiz Solve for x: 3. Simplify: 4. What property is illustrated below?

(For help, go to Lesson 1-1.) ALGEBRA 1 LESSON 2-5 Write a variable expression for each situation. 1.value in cents of q quarters 2.twice the length 3.number.

2-5 Equations and Problem Solving; 2-6 Formulas. Defining One Variable in Terms of Another  The length of a rectangle is 6 in. more than its width. The.

1.8 & 1.9 Words Into Symbols Problem Solving w/equations

Solving word problems work distance.

Objective: I can solve word problems!

1.8 & 1.9 Words Into Symbols Problem Solving w/equations

Consecutive Number Equations

Objective 2 Days The learner will solve real-life problems using equations (d=r*t)

MS Algebra – Ch. 7.6 Uniform Motion Problems

Solve ANSWER x = 9 ANSWER t =

4 minutes Warm-Up Morgan is 9 years older than Emma. The sum of their ages is 43. How old are they?

Ratios and Proportion    Write each fraction in simplest form.

8.5 Motion Problems.

Ratios and Proportion    Write each fraction in simplest form.

Equations and Problem Solving

Warm up #4 Six apples and three oranges cost $3. 36

THE “REALLY TOUGH STUFF”

Goal: The learner will use proportions to find measures of objects.

Warm-up Solve for y: Solve for a:.

Goal: The learner will find area and perimeter.

Chapter 3: Solving Equations

What is a “ratio”? How do you write a ratio?

Presentation transcript:

2) A boy who is 5.5 feet tall casts a shadow that is 8.25 feet long. The tree next to him casts a shadow that is 18 feet long. How tall is the tree? 3) The scale on a map is 1 in. : 20 mi. What is the actual distance between two towns that are 3.5 inches apart on the map?

 To define a variable in terms of another variable  To model distance-rate- time problems

To solve real-world problems involving distance, rate, and time, as in examples 3-5

consecutive integers: Numbers that differ by 1. Example: uniform motion: An object that moves at a constant rate.

The width of a rectangle is 3 in. less than its length. The perimeter of the rectangle is 26 in. What is the width of the rectangle? The width of the rectangle is 5

The sum of three consecutive integers is 72. Find the integers. 1 st Integer: 2 nd Integer: 3 rd Integer:

An airplane left an airport flying at 180 mi/h. A jet that flies at 330 mi/h left 1 hour later. The jet follows the same route as the airplane at a different altitude. How many hours will it take the jet to catch up with the airplane? 1 st plane: 2 nd plane: Therefore it will take the jet 1  hours to catch up to the 1 st plane.

Suppose you hike up a hill at 4 km/h. You hike back down at 6 km/h. Your hiking trip took 3 hours. How much time did it take you to hike up the hill? up hill: down hill: It took 1.8 hours to hike up the hill.

Two jets leave Dallas at the same time and fly in opposite directions. One is flying west 50 mi/h faster that the other. After two hours, the jets are 2500 miles apart. Find the speed of each jet. 1 st jet: 2 nd jet: The first jet was traveling at 600 mi/h and the second jet was traveling at 650 mi/h.

Web Site: PHSchool.com Tutor Web code: ate-0306 Lesson Web Code: ata-0306

 Write today’s goal.  Write today’s assignment.

 Pg – 18 e, 28, 36 – 42 e  Reflective Journal