Inequalities
What is the less than sign?
<
X > 2
3, 4, ....
X + 5 > 10
X > 5
Of the students surveyed, less than 25 said they enjoyed science class. Write an inequality to represent the situation.
x < 25
An open dot (cheerio) represents what?
not part of the solution set
What is the greater than sign?
>
F < 32
31, 30, ....
X - 18 < 3
x < 21
More than 120 of the students surveyed said they liked baseball as their favorite sport. Write an inequality to represent the situation.
x> 120
A closed dot (oreo) represents what?
part of the solution set
What is the less than or equal to sign?
≤
V < 12
11, 10, ....
3K > 18
K > 6
James gave no more than 24 cupcakes out to his classmates for his birthday. Write an inequality to represent the situation.
x ≤ 24
Which direction represents greater on the number line?
right
What is the greater than or equal to sign?
≥
C/2 > 20
41, 42, ...
H/3 > 9
H > 27
More than 300 cats were found in the backyard and barn. Write an inequality to represent the situation.
x > 300
Which direction represents less on a number line?
left
inequalities have one definite answer? True or False
False
2x < 18
8, 7, ...
h + 3 < -5
h < -8
You must be at least 18 years old to vote in the Presidential election. Write an inequality representing the situation.
x ≥ 18
Write an inequality: My bank account balance is now less than $300.
x < 300