Page 162 - Math Course 1 (Book 1)
P. 162
Understanding Inequalities
Determine Truth of an Inequality Write an inequality for the following sentence.
Your age is greater than 12 years.
Examples A. a < 12
B. a > 12
For the given value, state whether the inequality C. a ≤ 12
is true or false. s – 9 < 4, s = 6 D. a ≥ 12
s – 9 < 4 Write the inequality. Answer
6 – 9 < 4 Replace s with 6.
–3 < 4 Simplify.
Answer The sentence is true. CAFETERIA
The school cafeteria allows each student no
more than 2 servings of dessert during lunch.
Write an inequality to describe this situation.
For the given value, state whether the inequality
is true or false.
A. s < 2
a B. s > 2
14 ≤ + 1, a = 36
3 C. s ≤ 2
a D. s ≥ 2
14 ≤ + 1, a = 36 Write the inequality.
3 Answer
36
14 ≤ + 1 Replace a with 36.
3
?
14 ≤ 12 + 1 Simplify.
14 ≤ 13 Simplify.
Determine Truth of an Inequality
Answer The sentence is false.
For the given value, state whether the inequality
is true or false. 12 – m > 7, m = 5
Your Turn! A. true
B. false
C. sometimes true
Write Inequalities D. cannot be determined
Write an inequality for the following sentence. Answer
Your height is less than 48 inches.
A. h < 48
B. h > 48 For the given value, state whether the inequality
C. h ≤ 48 is true or false. + 3 ≤ 6, x = 10
20
D. h ≥ 48 x
A. true
Answer
B. false
C. sometimes true
D. cannot be determined
Answer
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