Inequalities
What is the name of this symbol?
≤
Less than OR equal to
Which of the following is a solution for d?
d+3=12
8,9,15,36
9
How many properties of equality are there?
4
You have a deck of cards that you are sharing with your friend. You give your friend 18 cards, which leaves you with 24. Using t to represent the total number of cards, write an equation.
t-18=24
t-24=18
24+18=t
Show me the inequality z≤10
Open circle on 10, arrow to the left.
Show me the symbol for NOT equal
≠
If 9x=81, does 9x-2=81-2?
Which property of equality is shown?
9x+2=83
9x+2+3=83+3
Ms. Ryan pays a friend to watch her cats. She charges $20 a day, d. Write an equation to find how much she would pay, p.
20d=p
B is the independent variable
Write an inequality for the following problem:
James has a budget of $15 at the super market. Let b represent the amount of money he can spend.
b ≤ 15
If 3+x=75, does 3+x+2=75-2?
No!
Which property of equality is shown?
x=27
9x=27x9
Multiplication property of equality
I went to the fair last week! It costs me $5 for admission and $2 for every ride. Write an equation where r represents the number of rides, and c represents cost.
5+2r=c
3+h=104
h=?
Is 25 a solution for h if h≥30?
No
Which of the following is a solution for y
y-6.2=2.9
2.9, 3.3, 9.1
9.1
Which property of equality is shown?
2x5=10
(2x5)/0.5=10/0.5
Division Property of Equality
15+0.05w=p
25x = 125
x = ?
x = 5
Ms. Ryan has a budget of $700 for a field trip. The bus costs $200, and each student, s, would cost $20.
Write an inequality to represent the number of students she can bring on the bus.
20s ≤ 500
Which of the following is a solution for h?
h - 4/9 = 5 1/3
57/9, 55/27, 55/12
57/9
Which property of equality is shown?
10x+3=33
10x+3-2=10x+3+2
None!
Coordinates (5,3), (10,8), and (12,10) are on the same line.
Using x and y, write an equation that is used to graph this line AND another ordered pair.
y=x-2
Examples can include: (7,5), (16,14) etc.
1/6 • a = 4
a = ?
a = 24