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Math: Ch. 7 Review Flashcards | StudBud
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Math: Ch. 7 Review
Solve: 2x = 14
The word more indicates what?
Math: Ch. 7 Review
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1
The word
more
indicates what?
multiplication
addition
division
subtraction
2
Solve: 2x = 14
7
x = 7
x = 12
x = 3
3
Solve: 8 = 4y
x = 2
2
y = 2
None of these are correct
4
When you replace a variable with a value that results in a true sentence you ____ the equation.
end
answer
solve
finish
5
What is the inverse operation of division?
multiplication
addition
subtraction
6
What is the definition of inverse operation?
Whatever you do to one side of the equation you have to do to the other
To undo what you have done
To do the opposite mathematical operation to undo it
To find the reciprocal
7
The phrase
two times fewer
indicates what?
division
subtraction
multiplication
addition
8
Solve: r ÷ 8 = 2.5
r = 15
r = 25
None of these are correct
r = 30
9
Solve: c + 2 = 5
c = 3
7
3
c = 7
10
What is the difference between an expression and an equation?
variables
mathematical operations
the equal sign
All of these are correct
11
What is the purpose of algebra?
To find the value of the variable(s)
To solve the equation.
Because the school is making us do it.
For us to be more smarter.
12
Solve: 9 = a - 5
a = 13
a = 11
a = 14
x = 14
13
An equation contains a(n) _____
problem that needs to be solved
equal sign
variable
problem that needs to be simplified
14
When showing multiplication of a variable, the letter typically goes in front of the number being multiplied by it.
False
True
15
The true value for the variable is the _____ of the equation.
value
variable
answer
solution
16
What do we do FIRST in order to solve for a variable?
simplify/solve all mathematical operations that can be done
get the variable by itself
17
Solve: 24 ÷ w = 8
3
x = 3
w = 3
w = 4
18
A(n) _____ is a mathematical sequence showing two expressions are equal.
equation
algebraic expression
equal sign
ratio
19
What is the inverse operation of subtraction?
division
multiplication
addition
20
The phrase
four times as much
indicates what?
subtraction
addition
multiplication
division
21
Whatever you do to one side of the equation, you do not do to the other side.
False
True
22
Solve: 7x = 15 + 6
x = 5
x = 3
x = 2
x = 4
23
What is the inverse operation of multiplication?
division
subtraction
addition
24
The word
less
indicates what?
division
multiplication
subtraction
addition
25
What is the inverse operation of addition?
multiplication
subtraction
division
