Algebra

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5

Explore Let c represent the cost of each window.

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Example 3-8b

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

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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.

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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

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End of Lesson 3

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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

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Example 4-1a

Answer: The value is 4.7.

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Example 4-1b

Answer: –13.7

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Example 4-2a

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Example 4-2b

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Example 4-3a

Answer: The solution set is .

This sentence is never true.

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Example 4-3b

Answer: 

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Example 4-4a

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Example 4-4b

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Example 4-4c

Answer: {6}

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End of Lesson 4

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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

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