Unit 7 lesson 3 two step equations and inequalities
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Unit 7 Lesson 3: Two-Step Equations and Inequalities. Lesson 3: Two-Step Inequalities. Cornell Notes Header. Introduction Problem.

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Unit 7 Lesson 3: Two-Step Equations and Inequalities

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Unit 7 lesson 3 two step equations and inequalities

Unit 7 Lesson 3: Two-Step Equations and Inequalities

Lesson 3: Two-Step Inequalities


Cornell notes header

Cornell Notes Header


Introduction problem

Introduction Problem

  • Mr. Smith wants to take his family, a wife and three children, to the movies. He has at most $62. Seven dollars will be spent buying the family a snack for the movie, and the rest will be spent on movie tickets. What amount can Mr. Smith pay for a movie ticket?


Solving graphing two step inequalities

Solving & Graphing Two-Step Inequalities

- 7 - 7

5t ≤ 55

__ ___

5 5

t ≤ 11


Problem

Problem

  • Mr. Smith wants to take his family, a wife and three children, to the movies. He has at most $62. Seven dollars will be spent buying the family a snack for the movie, and the rest will be spent on movie tickets. What amount can Mr. Smith pay for a movie ticket?

  • t ≤ 11 Mr. Smith can pay no more than $11 dollars per ticket.

  • Can Mr. Smith take the family to the movies?

  • We cannot determine the answer with the information given.


Solving and graphing two step inequalities group problem

Solving and Graphing Two-Step Inequalities Group Problem

  • x/2 - 6 > 10

    + 6 + 6Add 6 to both sides to undo subtracting 6.

    x/2 > 16

    2 ∙x/2 > 16 · 2Multiply both sides by 2 to undo dividing by 2.

    x > 32

  • Check: 34/2 – 6 > 10 Choose a value larger than 32 to check.

    17 – 6 > 10

    11 > 10


Summary

Summary

  • Summarize your notes in one to two sentences using the words two-step inequality and graphing.


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