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**5**

Explore Let c represent the cost of each window.

Slide 61

Example 3-8b

Answer: Carl can afford to spend $150 on each window.

Slide 62

Example 3-8c

Examine The total cost to replace five windows at $150 each is 5(150) or $750. Add the $250 cost of the carpenter to that, and the total bill to replace the windows is 750 + 250 or $1000. Thus, the answer is correct.

Slide 63

Home Improvement Kelly wants to repair the siding on her house. Her contractor will charge her $300 plus $150 per square foot of siding. How much siding can she repair for $1500?

Example 3-8d

Answer: 8 ft2

Slide 64

End of Lesson 3

Slide 65

Lesson 4 Contents

Example 1 Evaluate an Expression with Absolute Value

Example 2 Solve an Absolute Value Equation

Example 3 No Solution

Example 4 One Solution

Slide 66

Example 4-1a

Answer: The value is 4.7.

Slide 67

Example 4-1b

Answer: –13.7

Slide 68

Example 4-2a

Slide 69

Example 4-2b

Slide 70

Example 4-3a

Answer: The solution set is .

This sentence is never true.

Slide 71

Example 4-3b

Answer:

Slide 72

Example 4-4a

Slide 73

Example 4-4b

Slide 74

Example 4-4c

Answer: {6}

Slide 75

End of Lesson 4

Slide 76

Lesson 5 Contents

Example 1 Solve an Inequality Using Addition or Subtraction

Example 2 Solve an Inequality Using Multiplication or Division

Example 3 Solve a Multi-Step Inequality

Example 4 Write an Inequality

Slide 77

- Radioactivity and Nuclear Reactions
- Radiation
- Direct heat utilization of geothermal energy
- Sound
- Madame Marie Curie
- Newton’s laws of motion
- Motion

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