lesson 7-4 pages 345-349 solving inequalities by adding or subtracting pa lesson check 7-3
TRANSCRIPT
Lesson 7-4 Pages 345-349
Solving Inequalities by Adding or Subtracting
PA Lesson Check 7-3
What you will learn!How to solve inequalities by using the Addition and Subtraction Properties of Inequality.
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.
Example 1: Solve:
y + 5 > 11
y > 6− 5 − 5
Example 2: Solve:
-21 ≥ d – 8
-13 ≥ d
d ≤ -13
Example 3: Solve and graph.
52
11 h
2
16h
8 96 74 5 1110
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
Example 4:
g + 3.75 ≤ 12g ≤ 8.25
Kim can spend at most $8.25 on games and snacks.
Page 347
Guided Practice
#’s 4-12
Pages 345-347 with someone at home and
study examples!
Read:
Homework: Pages 348-349
#’s 14-46 even
#’s 49-70 all
PA Lesson Check 7-4
Page
740
Lesson 7-4
PA Lesson Check 7-4
Prepare for Mid-Test!
Pages 360-361
#’s 11-31Odd Answers in Back of Book!
