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Unit 3: Solving Equations

Unit 3: Solving Equations. Minds On. There are 3 sisters, Dina, Michelle and Juliette. Dina is half as old as Michelle and 3 years younger than Juliette . Write an expression to describe this situation. If their ages total 39, how old is each sister?. Lesson 5: More Word Problems.

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Unit 3: Solving Equations

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  1. Unit 3: Solving Equations Minds On There are 3 sisters, Dina, Michelle and Juliette. Dina is half as old as Michelle and 3 years younger than Juliette. Write an expression to describe this situation. If their ages total 39, how old is each sister?

  2. Lesson 5: More Word Problems • Learning Goals • I can create equations from word problems • I can solve equations that represent real life problems Unit 3: Solving Equations

  3. Unit 3: Solving Equations Lesson 5: More Word Problems Worksheet Answers n + 11 = 48 (n = 37) n – 9 n3 = 48 n + 7 = 33 (n = 27) n – 3 = 27 (n = 30)

  4. Unit 3: Solving Equations Lesson 5: More Word Problems Worksheet Answers 6. n – 18 = 19 (n = 37) 7. n(5) = 9 (n = 8. n – 9 = 32 (n = 41) 9. n2 = 11 10. n + 12 = 44 (n = 32)

  5. Unit 3: Solving Equations Lesson 5: More Word Problems Worksheet Answers 11. n – 17 = 15 (n = 32) 12. (n = 13. n - 4 = 8 (n = 12) 14. n – 21 = 37 (n = 48) 15. n3 = 25

  6. Unit 3: Solving Equations Lesson 5: More Word Problems Success Criteria Read the problem. Read it again. And again. Underline what it is asking you to find out Assign a variable (x) to the quantity you are trying to find out. (let X equal…..) Read the problem again. Write an equation to represent the relationship between the quantities given in the problem Answer the question Check the answer

  7. Unit 3: Solving Equations Lesson 5: More Word Problems

  8. Unit 3: Solving Equations Lesson 5: More Word Problems Example 1: The ages of Diego and Eva total 13 years. Eva’s age plus three times Diego’s age is 25. How old is each person?

  9. Unit 3: Solving Equations Lesson 5: More Word Problems Example 2: For two consecutive integers, the sum of the larger number and four times the smaller is 171. Find the integers.

  10. Unit 3: Solving Equations Lesson 5: More Word Problems Example 3: Find 3 consecutive numbers with a sum of 48.

  11. Unit 3: Solving Equations Lesson 5: More Word Problems Example 4: Find two consecutive even numbers with a sum of 178.

  12. Unit 3: Modeling Using Equations Lesson 5: More Word Problems 10. The ages of John and Mary total 27 years. Mary’s age plus twice John’s age is 40. How old is each person?

  13. Unit 3: Modeling Using Equations Lesson 5: More Word Problems 13. For two consecutive integers, the sum of twice the larger number and three times the smaller is 242. Find the integers.

  14. Unit 3: Modeling Using Equations Lesson 5: More Word Problems 19. Find 3 consecutive numbers with a sum of 159.

  15. Unit 3: Modeling Using Equations Lesson 5: More Word Problems 21. Find two consecutive even numbers with a sum of 226.

  16. Unit 3: Solving Equations Lesson 5: More Word Problems • Practice • Complete worksheet questions 1 - 30

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