AnswersTX-College Prep Math BUnit Test

Writing Equations to Find Unknowns Answers

15 verified answers3 views
1
Free Preview

For which equations is 8 a solution? Select the four correct answers.

A
x + 6 = 2
Option A
B
x + 2 = 10
Option B
C
x minus 4 = 4
Option C
D
x minus 2 = 10
Option D
E
2 x = 4
Option E
F
3 x = 24
Option F
G
StartFraction x Over 2 EndFraction = 16
Option G
H
StartFraction x Over 8 EndFraction = 1
Option H
2
Free Preview

Which are equations? Check all that apply.

A
x + 3 = 12
Option A
B
StartFraction z Over 7 EndFraction + 1
Option B
C
25 minus q
Option C
D
6 g = 18
Option D
E
Two-thirds m
Option E
F
StartFraction p Over 3.5 EndFraction = 2.25
Option F
G
9 = 100 minus f
Option G
H
k divided by 5.8
Option H
3

What is the name for a statement that shows two expressions are equal?

Answer not available
4

Which phrase is usually associated with addition?

A
the difference of two numbers
B
triple a number
C
half of a number
D
the total of two numbers
5

Which mathematical statement represents “17 more than a number is 26”?

A
17 greater-than 26
Option A
B
n + 17 = 26
Option B
C
17 less-than 26
Option C
D
26 + n = 17
Option D
6

Which equation represents “the product of a number and 24 is 72”?

A
24 p = 72
Option A
B
24 = 72 p
Option B
C
(24) (72) = p
Option C
D
StartFraction p Over 24 EndFraction = 72
Option D
7

Maria did the work to see if 8 is a solution to the equation .Does her work show that 8 is a solution to the equation?

Question illustration
A
Yes, because the last line of the work is true.
B
Yes, because 11 minus 8 equals 3.
C
No, because 8 is even and the other numbers in the equation are odd.
D
No, because the last line of the work is not true. 5 and 11 are not equal.
8

Which equation has a solution of ?

Question illustration
A
x + 3 = 10
Option A
B
x minus 10 = 3
Option B
C
StartFraction x Over 2 EndFraction = 26
Option C
D
x + 12 = 1
Option D
9

Roberto wrote a sentence that describes an equation.Half of a number is 45.Which choice shows Roberto’s equation and its solution?

A
;
Option A
B
;
Option B
C
;
Option C
D
;
Option D
10

Which sentence could be used to describe the equation ?

Question illustration
A
The sum of 78 and a number is 105.
B
The number 105 is more than 78.
C
The sum of 105 and 78 is a number.
D
Seventy-eight is more than the number one hundred five.
11

Which statement about equations and expressions is true?

A
An example of an equation is because it shows that two expressions are equal.
Option A
B
An example of an expression is because it shows that two equations are equal.
Option B
C
An example of an equation is because it is a mathematical phrase represented by numbers, a variable, and operations.
Option C
D
An example of an expression is because it is a mathematical phrase represented by numbers, a variable, and operations.
Option D
12

Which statement about equations and expressions is true?

A
An example of an equation is because it shows that two expressions are equal.
Option A
B
An example of an expression is because it shows that two equations are equal.
Option B
C
An example of an equation is because it is a mathematical phrase represented by numbers, a variable, and an operation.
Option C
D
An example of an expression is because it is a mathematical phrase represented by numbers, a variable, and an operation.
Option D
13

Which sentence can be represented by the equation ?

Question illustration
A
The sum of and a number is 15.
Option A
B
Three-fifths more than a number is 15.
C
Three-fifths times a number is 15.
D
The quotient of and a number is 15.
Option D
14

Which phrase can be represented by an equation?

A
twice as much as a number
B
12 less than a number
C
half of a number is 15
D
the difference of 20 and a number
15

Collin did the work to see if 10 is a solution to the equation .Is 10 a solution to the equation?

Question illustration
A
Yes, because 10 and 4 are both even.
B
Yes, because if you substitute 10 for r in the equation and simplify, you find that the equation is true.
C
No, because 10 is not divisable by 4.
D
No, because if you substitute 10 for r in the equation and simplify, you find that the equation is not true.

Did you find these answers helpful?

More from this Course

Quiz
16 verified answers

Solving One-Step Equations: Multiplication and Division

Quiz
15 verified answers

Solving One-Step Equations: Addition and Subtraction

Quiz
14 verified answers

Modeling Real-World Problems with One-Step Equations