Inequalities
Name this sign ≥
greater than or equal to
Solve the equation.
(24.01 + m = 49 )
m = 24.99
Evaluate the algebraic expression for
w =1, x = 3, z = 2:
( w2 + 2 + 48 ÷ 2z)
16
52 + (6.7 - 3.1)
28.6
The number of cups sold, c, and the dollar amount of sale, s
c independent
s dependent
Write an inequality for the situation:
(Up to 25 students, s, can ride in the bus).
s ≤ 25
Solve the equation.
( 32 = n – 19.3 )
n = 51.3
Evaluate the algebraic expression for
y= 1𝟏/𝟐:
( 𝟑/𝟒 + 4y )
6.75 or 6 3/4
258.1 – ( 52 + 4 ) x 4
142.1
The miles, m an athelte runs and the calories, c he burns
m independent
c dependent
The number of baseball games, x, that Jana went to last year is more than 5.
x > 5
Solve the equation.
( 30m = 300 )
m = 10
Evaluate the numerical expression:
( 8.2 + 5.3 ) ÷ 5
2.7
r =2, s = 3, z = 5:
r2 + (5 + 45) ÷ 2z
9
t ÷ 15 = 3
t= 45
No more than 117 people, p , can sit in the restaurant.
117 ≥ p
Solve the equation.
( x ÷ 11 = 11)
x = 121
Evaluate the numerical expression:
157.8 – ( 32 + 6 ) x 3
43.8
q = 3/4:
(4q ÷ 3/5)
5
51y = 510
y = 10
A certain airplane must carry no more than 150 passengers during a flight.
Write an inequality to represent the number of passengers that would NOT be allowed during this flight.
p > 150
The sale price is 5 SR less than the regular price for notebooks. ( 3 marks)
Let s = the sale price.
Let r = the regular price
r s
10 ---
20 ---
--- ---
r s
10 5
20 15
30 25
Maya wrote the equation ( h = d + 22 ) to represent the relationship shown in the table. (3 marks)
h 3 5 7 9
d 330 550 770 990
110h = d is the correct equation
22 = a ÷ 5
110
(The number of hours spent studying for the Math test and the score on the test).
What is the independent variable in this relation? EXPLAIN.
hours spent ---- independent
Math score ----- dependent