Inequalities in Word Problems

Slides:

Advertisements

Similar presentations

Name:____________ warm-up 5-4 Solve 3x – 15 < 45 Write an equation for two times the difference of a number and five is greater than seven. Solve 2p –

Advertisements

21 st Century Lessons Introduction to Inequalities in the Real World 1.

Copyright © 2013 Pearson Education, Inc. Section 2.5 Linear Inequalities.

Warm Up Sept. 20 Sit in your usual seat with your tracking sheet out. Answer the following questions. 1.How did you feel about the test yesterday? What.

5 Minute Check Complete in your notes. The school cafeteria sells lunch passes that allow a student to purchase any number of lunches in advance for $3.

Solving Inequalities by Adding or Subtracting

Solving Compound Inequalities. Objective Today you will solve compound inequalities containing the word and, and graph their solution set. Today you will.

Name:________________________________________________________________________________Date:_____/_____/__________ 1) x –(-4) = -102) -6x = 60 4) 3x + 2.

In the Real World You must be at least 42 inches to ride the bumper cars.

3.6 Solving Absolute Value Equations and Inequalities

Chapter 4 Review. Choose a solution that satisfies each inequality.

Inequalities Critical Thinking Skill: Explicitly assess information and draw conclusions.

ABSOLUTE VALUE INEQUALITIES.  Just like absolute value equations, inequalities will have two solutions: |3x - 2| ≤ 7 3x – 2 ≤ x ≤ 9 x ≤ 3 -5/3.

1.graph inequalities on a number line. 2.solve inequalities using addition and subtraction. Objective The student will be able to:

Holt Algebra Solving Systems of Linear Inequalities Warm Up 1. Graph 2x – y > 4. Determine if the given ordered pair is a solution of the system.

Inequalities and their Graphs Symbols SymbolMeaningGraph < Less thanOpen circle > Greater thanOpen circle ≤ Less than or equal to Closed circle.

Compound Inequalities – Part 1 Honors Math – Grade 8.

Solving Inequalities.

Graphing Inequalities 2.8 >,≤,

Solving and Graphing Compound Inequalities

Write and solve an inequality to represent the following situation. If I subtract three from a number, then my answer is less than four. Write the words.

Task 2: The Design A roller coaster can be based on mathematical functions, but they are more likely to be made up of pieces, each of which is a different.

PRE-ALGEBRA. Lesson 2-8 Warm-Up PRE-ALGEBRA What is an “inequality”? What is the “solution of an inequality”? How do you find all of the “solution of.

Name: ____________________________ Date: ____________ Section: _____ Inequalities in Word Problems Equations: __________________________________________.

Lesson – Teacher Notes Standard:

5 Minute Check Determine which number is a solution to the inequality. Complete in your notes – h > 2; 3,4,5 2. f + 8 < 8; 0,1, > 5u; 5, 6,

Introduction to System of Equations and Points of Intersection

Inequalities and their solutions.

Solving Inequalities by Adding or Subtracting

Writing Inequalities to Represent Real-Life Situations

Optimization Problems

Word Problems and Inequalities

by Monica Yuskaitis, M.A.Ed.

Section 5.5 Solving Absolute Value Equations and Inequalities

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

You will be given the answer. You must give the correct question.

Word Problems with Inequalities

Introduction Inequalities are similar to equations in that they are mathematical sentences. They are different in that they are not equal all the time.

Introduction to Inequalities in the Real World

Inequalities Today’s Lesson: What: Why:

Inequalities Today’s Lesson: What: Why:

Inequalities and Graphs (3-1)

Backtracking and Graphing

Unit 3b Part 1 REVIEW Ms. Taylor.

Mr. Smith has a maximum of $50 to spend at a museum

Do Now Isolate the named variables. Y = mx + b, solve for b

Compound Inequalities

Linear Programming Skill 45.

Warmup Find the intersection between -3x + 4y = 15 2y + 5x = -12.

3.1 Inequalities and Their Graphs

3-3 Solving Systems of Linear Inequalities Warm Up Lesson Presentation

Day 8 – Linear Inequalities

Unit 3b Part 1.

Beth begins with $10 in the bank and

Writing Inequalities to Represent Real-Life Situations

Warm up – (HW review from yesterday)

Solving Inequalities in One Variable

Writing expressions, equations, and inequalities from word problems

Writing, Graphing, and Solving

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Word Problems with Inequalities

Outcome 3 Inequalities.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

#1 #2 #3 Chapter 6 -3 Write an inequality for the sentence:

Solving Inequalities by Adding or Subtracting

Core Focus on Rational Numbers & Equations

Presentation transcript:

Inequalities in Word Problems test is on March 11th

There is an answer key at the end of the slide show 

An electronics store sells DVD players and cordless telephones An electronics store sells DVD players and cordless telephones. The store makes a $75 profit on the sale of each DVD player (d) and a $30 profit on the sale of each cordless telephone (c). The store wants to make a profit of at least $255.00 from its sales of DVD players and cordless phones. Which inequality describes this situation? 75d + 30c > 255 75d + 30c ≥ 255 75d + 30c ≤ 255 75d + 30c < 255

Mrs. Smith wrote "Eight less than three times a number is greater than fifteen" on the board. If x represents the number, which inequality is a correct translation of this statement? a. − 8 < 15 b. 8 − 3x < 15 c. 3x − 8 > 15 d. 8 − 3x > 15

All Riders MUST be at least 48 inches tall to ride If h represents the height of a rider in inches, what is a correct translation of the statement on this sign? a. h ≤ 48 b. h > 48 c. h ≥ 48 d. h < 48

Roger is having a picnic for 78 guests Roger is having a picnic for 78 guests. He plans to serve each guest at least one hotdog . If each package , p, contains 8 hot dogs, which inequality could be used to determine how many packages of hot dogs Roger will need to buy? p≥ 78 8p≥ 78 8+p ≥ 78 78-p ≥ 78

Which Value of x is in the solution set of the inequality -2x + 5 > 17 ? b. -6 c. -4 d. 12

Kendra has $52 dollars in her savings account Kendra has $52 dollars in her savings account. Kendra is trying to save at least $150. Which of the following inequalities represents how much more money Kendra needs to save to have at least $150 in her savings account? Use d to represent dollars d≥98 d≤98 d>98 d<98

A water ride at a theme park requires riders to be at least 50 inches tall. Which of the following inequalities represents the height required to ride the roller coaster? h>50 h<50 h≤50 h≥50

Be able to graph Equations on a number line: Feel free to study using IXL The temporary user name is brianemison The temporary password is emison64

Answer Key: B C A D