Vocabulary
A letter that represents an unknown number
What is a Variable
1/2 _____1/4
>
1/2 +1/2=
1
7x=63
x=
9
137+221=
358
A mathematical sentence that includes an equal sign to compare two expressions.
Equation
1.5_______1 3/3
<
0.50
3x=33
X=
11
21x4=
84
Operations that undo each other have a ___________.
Inverse Relationship
.50_____1/2
=
1/2-1/4=
1/4
x-4=12
X=
16
214x3=
642
A mathematical sentence that uses <, >, or = to compare two quantities.
Inequality
v>35
V=
any number over 35
1.45=2.15=
3.60
x/4=2.25
X=
9
11x5=
55
A variable whose value changes in response to another variable.
Dependent variable
M<2
M=
Any number less than 2
2/3x4/5
8/15
X-1.08=2.92
X=
4
1234-324=
910