Understand Equations and Solutions & P.O.E
4-1 & 4-2
4-1 & 4-2
Write and Solve addition, subtraction, multiplication, and division equations
4-3 & 4-4
4-3 & 4-4
Write and solve equations with Rational Numbers
4-5
4-5
Understand and solve inequalities
4-6 & 4-7
4-6 & 4-7
Ind. & Dep. Variables
4-8
4-8
100
Which Property of equality is being used?
if 6 + 2 = 8, then 6+2-2= 8 -2
Subtraction Property of Equality
100
42 = y + 15
y = ?
y = 27
100
5 1/2 + x = 7 1/2
x =?
x = 2
100
x < 10
What are THREE possibilities for what x could be:
Answers may vary: -6 , 0 , 9, -1,000 , 5
100
Sarah is participating in a walkathon to raise money for local literacy programs. The amount of money Sarah will raise depends on the distance she walks.
m = the amount of money Sarah will raise
d = the distance Sarah walks
Which of the variables is independent?
Independent = d
200
Which Property of Equality is being used here?
if 5 + 4 = 9, then 5 + 4 / 3 = 9 / 3
Division Property of Equality
200
x - 15 = 31
x =?
x = 46
200
x/8 = 4
x = ?
x = 32
200
Write an inequality sentence that represents the graph:
x is greater than or equal to 6
200
Priya streams movies through a company that charges her a $5 monthly fee plus $1.50 per movie
What is the dependent variable?
Dependent variable = The money it co$t$
300
f + 12.5 = 26
f = ?
f = 13.5
300
45x = 270
x = ?
x = 6
300
25x = 5
x = ?
x=1/5
300
Answer: C
300
Steve wanted to see if the type of fertilizer made sunflowers grow larger.
What is the independent variable?
Independent variable = fertilizer used
400
160 / y = 80
y = ?
y = 2
400
66 = a / 11
a = ?
a = 726
400
15.95 = 3.19n
n = ?
n = 5
400
Write an inequality : the measurement is greater than 23 inches
m > 23
400
Spending time with a family dog decreases the amount of stress someone is feeling. Spending time with dog is the....
independent variable
500
a + 13.7 = 29.9
a = ?
a = 16.2
500
13.87 = a - 22.23
a = ?
a = 36.10
500
2 2/3 + y = 4 1/4
y = ?
y = 1 7/12
500
Write the inequality that matches the number line
x is less than or equal to -1
500
Karianne makes $12 an hour dog walking. With h representing hours and t representing total cost.
Name the independent variable
Independent variable = hours