lesson 7-4 pages 345-349 solving inequalities by adding or subtracting pa lesson check 7-3
TRANSCRIPT
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Lesson 7-4 Pages 345-349
Solving Inequalities by Adding or Subtracting
PA Lesson Check 7-3
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What you will learn!How to solve inequalities by using the Addition and Subtraction Properties of Inequality.
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What you really need to know!
Use the Addition and Subtraction Properties of Inequalities. When you add or subtract a number from each side of an inequality, the inequality remains true.
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Example 1: Solve:
y + 5 > 11
y > 6− 5 − 5
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Example 2: Solve:
-21 ≥ d – 8
-13 ≥ d
d ≤ -13
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Example 3: Solve and graph.
52
11 h
2
16h
8 96 74 5 1110
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Example 4:
Kim has $12 to take to the bowling alley. If the shoe rental costs $3.75, what is the most she can spend on games and snacks?
g + 3.75 ≤ 12
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Example 4:
g + 3.75 ≤ 12g ≤ 8.25
Kim can spend at most $8.25 on games and snacks.
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Page 347
Guided Practice
#’s 4-12
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Pages 345-347 with someone at home and
study examples!
Read:
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Homework: Pages 348-349
#’s 14-46 even
#’s 49-70 all
PA Lesson Check 7-4
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Page
740
Lesson 7-4
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PA Lesson Check 7-4
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Prepare for Mid-Test!
Pages 360-361
#’s 11-31Odd Answers in Back of Book!
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