Holt CA Course 1 1-6Writing Algebraic Expressions Warm Up Warm Up California Standards California Standards Lesson Presentation Lesson PresentationPreview.

Slides:



Advertisements
Similar presentations
Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.
Advertisements

Holt CA Course 1 1-6Writing Algebraic Expressions Mr. Campbell drives at 55 mi/h. Write an algebraic expression for how far he can drive in h hours. Then.
Translate Words into Math
Unit 2 Lesson 1 Warm Up Problem of the Day Lesson Presentation
Bell Ringer In a factory of 200 people, 120 are men who earn $18 an hour. The women earn $20 an hour. What is the average salary of the employees at the.
Course Variables and Algebraic Expressions 1-7 Variables and Algebraic Expressions Course 2 Warm Up Warm Up Problem of the Day Problem of the Day.
Retakes: -Quiz corrections due TOMORROW -Retakes Friday at lunch Quiz: -Friday quiz on LCM, GCF, and prime factorization. -Friday is assignment redo cutoff.
Course Translate Words into Math Do Now Evaluate each algebraic expression for the given value of the variables. 1. 7x + 4 for x = y – 22 for.
Variables and Expressions
Holt CA Course 1 1-6Writing Algebraic Expressions OperationVerbal Expressions Algebraic Expressions add 3 to a number a number plus 3 the sum of a number.
Translating Words into Math 1-4. Although they are closely related, a Great Dane weighs about 40 times as much as a Chihuahua. An expression for the weight.
Today’s Plan: -Entry Task & Correct Homework -Words and Math -Practice Learning Target: -I will translate words into mathematical expressions, and mathematical.
Holt CA Course 2 Writing Algebraic Expressions 1-2 Warm Up Warm Up California Standards California Standards Lesson Presentation Lesson PresentationPreview.
Holt CA Course 1 Evaluating Algebraic Expressions 1-5 AF1.2 Write and evaluate an algebraic expression for a given situation, using up to three variables.
Writing Algebraic Expressions Mini Lesson. Objective: Write and evaluate an algebraic expression for a given situation, using up to three variables.
Holt CA Course 1 1-6Writing Algebraic Expressions AF1.2 Write and evaluate an algebraic expression for a given situation, using up to three variables.
Learn to translate words into numbers, variables, and operations. 9/30/08 From Words to Math #14.
2-8 Translate Words into Math Course 2 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.
Holt CA Course 1 1-6Writing Algebraic Expressions Warm Up Warm Up California Standards California Standards Lesson Presentation Lesson PresentationPreview.
Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson Quizzes.
Course Translate Between Words and Math Course Translate Between Words and Math Course 1 Warm Up Warm Up Lesson Presentation Lesson Presentation.
Course Algebraic Expressions Course Algebraic Expressions Course 3 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation.
1-7 Translate Words into Math Warm Up Evaluate each algebraic expression for the given value of the variables. 1. 7x + 4 for x = y – 22 for y = 9.
Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.
Learn to translate words into numbers, variables, and operations.
Translate Words into Math
Warm Up 1. 7x + 4 for x = y – 22 for y = 9
2-2 Translating Between Words and Math
Variables and Expressions
Writing Algebraic Expressions
Variables and Expressions
Translate Words into Math
Variables and Expressions
Variables and Expressions
Writing Algebraic Expressions
Variables and Expressions
Writing Algebraic Expressions
Warm Up Group the following apples, oranges, & bananas together and write as an algebraic expression. Now in your own words, give a definition for algebraic.
Translate Between Words and Math 2-2
Writing Algebraic Expressions
Variables and Expressions
Variables and Expressions
Writing Algebraic Expressions
Translate Between Words and Math 2-2
Writing Algebraic Expressions
Variables and Expressions
Variables and Expressions
Learn to write algebraic expressions.
Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.
Variables and Expressions
Find your seat and be ready for your Do Now
Warm Up Write an algebraic expression for each word phrase.
Warm Up 1. 7x + 4 for x = y – 22 for y = 9
DO Now! Agenda Format your papers for Cornell Notes Do Now
Writing Algebraic Expressions
September 11th, 2014 Day 20 xx 7-1 Learning Target – Today I will be able to compare and order integers to determine absolute value Bellringer Lesson Exit.
Writing Algebraic Expressions
Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.
Writing Algebraic Expressions
Variables and Expressions
Writing Algebraic Expressions
Variables and Expressions
Variables and Expressions
Writing Algebraic Expressions
Variables and Expressions
Translate Words into Math
Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.
Problem of the Day A farmer sent his two children out to count the number of ducks and cows in the field. Jean counted 50 heads. Charles counted 154 legs.
Writing Algebraic Expressions
Presentation transcript:

Holt CA Course 1 1-6Writing Algebraic Expressions Warm Up Warm Up California Standards California Standards Lesson Presentation Lesson PresentationPreview

Holt CA Course 1 1-6Writing Algebraic Expressions Warm Up Evaluate each algebraic expression for the given values of the variables. 1. 7x + 4 for x = y – 22 for y = x + for x = 7 and y = 4 4. y + 3z for y = 5 and z = y8y 23

Holt CA Course 1 1-6Writing Algebraic Expressions AF1.2 Write and evaluate an algebraic expression for a given situation, using up to three variables. California Standards

Holt CA Course 1 1-6Writing Algebraic Expressions A Great Dane weighs about 40 times as much as a Chihuahua. An expression for the weight of the Great Dane could be 40c, where c is the weight of the Chihuahua. When solving real-world problems, you will need to translate words, or verbal expressions, into algebraic expressions.

Holt CA Course 1 1-6Writing Algebraic Expressions OperationVerbal Expressions Algebraic Expressions add 3 to a number a number plus 3 the sum of a number and 3 3 more than a number a number increased by 3 subtract 12 from a number a number minus 12 the difference of a number and less than a number a number decreased by 12 take away 12 from a number a number less than 12 n + 3 x – 12

Holt CA Course 1 1-6Writing Algebraic Expressions OperationVerbal Expressions Algebraic Expressions 2 times a number 2 multiplied by a number the product of 2 and a number 6 divided into a number a number divided by 6 the quotient of a number and 6 2m or 2 m ÷ a6a6 ÷ 6 or a

Holt CA Course 1 1-6Writing Algebraic Expressions Additional Example 1: Translating Verbal Expressions into Algebraic Expressions Write each phrase as an algebraic expression. A. the quotient of a number and 4 quotient means “divide” B. w increased by 5 increased by means “add” w + 5 n4n4

Holt CA Course 1 1-6Writing Algebraic Expressions Write each phrase as an algebraic expression. Additional Example 1: Translating Verbal Expressions into Algebraic Expressions C. the difference of 3 times a number and 7 the difference of 3 times a number and 7 D. the quotient of 4 and a number, increased by 10 3 x – 7 the quotient of 4 and a number, increased by 10 4n4n + 10

Holt CA Course 1 1-6Writing Algebraic Expressions Check It Out! Example 1 A. a number decreased by 10 decreased means “subtract” B. r plus 20 plus means “add” r + 20 n – 10 Write each phrase as an algebraic expression.

Holt CA Course 1 1-6Writing Algebraic Expressions Check It Out! Example 1 Write each phrase as an algebraic expression. C. the product of a number and 5 D. 4 times the difference of y and 8 y – 8 n 5 the product of a number and 5 5n5n 4 times the difference of y and 8 4(y – 8) 4

Holt CA Course 1 1-6Writing Algebraic Expressions When solving real-world problems, you may need to determine the action to know which operation to use. ActionOperation Put parts together Put equal parts together Find how much more Separate into equal parts Add Multiply Subtract Divide

Holt CA Course 1 1-6Writing Algebraic Expressions Mr. Campbell drives at 55 mi/h. Write an algebraic expression for how far he can drive in h hours. Then evaluate the expression for h = 3, and tell what the value of the expression means. Additional Example 2A: Translating Real-World Problems into Algebraic Expressions You need to put equal parts together. This involves multiplication. 55mi/h  h hours = 55(h) miles 55(h) milesWrite the expression. Substitute 3 for h.55(3) miles Multiply.165 Mr. Campbell can drive 165 miles in 3 hours.

Holt CA Course 1 1-6Writing Algebraic Expressions On a test, multiple-choice questions are worth 1 point, short-answer questions are worth 2 points, and essay questions are worth 10 points. Write an algebraic expression for Maritza’s total points if she answers m multiple-choice, s short-answer, and e essay questions correctly. Then evaluate the expression for m = 48, s = 8, and e = 3, and tell what the value of the expression means. Additional Example 2B: Translating Real-World Problems into Algebraic Expressions Multiply to put equal parts together. multiple-choice questions: 1m or m short-answer questions: 2sessay questions: 10e

Holt CA Course 1 1-6Writing Algebraic Expressions Additional Example 2B Continued Add to put the parts together. Maritza earned 94 points on the test. Total points: 1m + 2s + 10e 1m + 2s + 10eWrite the expression. Substitute 48 for m, 8 for s, and 3 for e. 1(48) + 2(8) + 10(3) Multiply from left to right Add.

Holt CA Course 1 1-6Writing Algebraic Expressions You need to put equal parts together. This involves multiplication. 8(h) unitsWrite the expression. Substitute 5 for h.8(5) units Multiply.40 Julie Ann can build 40 units in 5 hours. Check It Out! Example 2A Julie Ann works on an assembly line building computers. She can assemble 8 units an hour. Write an expression for the number of units she can produce in h hours. Then evaluate the expression for h = 5, and tell what the value of the expression means. 8 units/h  h hours = 8h

Holt CA Course 1 1-6Writing Algebraic Expressions For lunch, students have 3 choices. A turkey sandwich for $3, a bowl of soup for $2, and a chicken salad for $4. Write an algebraic expression to show how much it costs for s sandwiches, b bowls of soup, and c chicken salads. Then evaluate the expression for s = 32, b = 20, and c = 10, and tell what the value of the expression means. Check It Out! Example 2B Multiply to put equal parts together. turkey sandwich: 3s bowls of soup: 2bchicken salad: 4c

Holt CA Course 1 1-6Writing Algebraic Expressions Check It Out! Example 2B Continued Add to put equal parts together. The cost of 32 turkey sandwiches, 20 bowls of soup, and 10 chicken salads is $176. Total cost: 3s + 2b + 4c 3s + 2b + 4cWrite the expression. Substitute 32 for s, 20 for b, and 10 for c. 3(32) + 2(20) + 4(10) Multiply from left to right Add.

Holt CA Course 1 1-6Writing Algebraic Expressions Lesson Quiz Write each phrase as an algebraic expression less than a number 2. the quotient of a number and times the sum of x and less than the product of a number and 5 x – 18 8(x + 15) 5n – 7 5. The county fair charges an admission of $6 and then charges $2 for each ride. Write an algebraic expression to represent the total cost after r rides at the fair r x 21