AnswersWCPSS-Introductory Math CRUnit Test

Unit Test — Unit test Answers

15 verified answers
1
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What is the solution to –4(8 – 3x) ≥ 6x – 8?

A
x ≥ –
Option A
B
x ≤ –
Option B
C
x ≥ 4
D
x ≤ 4
2
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What is the value of x in the equation below? Round to the nearest hundredths place.

Question illustration
A
3.01
Option A
B
3.17
Option B
C
36.44
Option C
D
38.4
Option D
3

Identify the method that will be used in solving for x.

Question illustration
A
distributive property
B
multiplication property of equality
C
division property of equality
D
subtraction property of equality
4

Which steps can be used in order to determine the solution to ?

Question illustration
A
Subtract 1.3 from both sides of the equation, add 4x to both sides of the equation, then divide by the coefficient of x.
B
Subtract 1.3 from both sides of the equation, subtract 4.6x from both sides of the equation, then divide both sides by the coefficient of x.
C
Add 1.3 to both sides of the equation, subtract 4.6x from both sides of the equation, then divide both sides by the coefficient of x.
D
Add 1.3 to both sides of the equation, subtract 4x from both sides of the equation, then divide both sides by the coefficient of x.
5

Solve the inequality.2(4+2x)≥5x+5

x
x≤−2
x
x≥−2
x
x≤3
x
x≥3
6

Viktoriya solved an equation as shown below.She says that the equation has infinitely many solutions. Which describes Viktoriya’s error?

Question illustration
A
Viktoriya used the distributive property incorrectly when she found the solution.
B
Viktoriya should have said that the equation has no solution.
C
Viktoriya should have continued to solve the equation to find that .
Option C
D
Viktoriya should have said that the equation has one unique solution.
7

What is the value of c in the equation ?

Question illustration
A
3 and one-sixth
Option A
B
7 and StartFraction 7 Over 12 EndFraction
Option B
C
12
D
17
8

Ronin draws a square with a measure of inches on each side. The perimeter of his square is 96 inches. The equation below represents the perimeter of the square.What is the value of x?

Question illustration
A
16
B
22
C
24
D
26
9

What is the value of x in the equation ?

Question illustration
Answer not available
10

Kari picked 23 bunches of flowers from her garden. Each bunch had the same number of flowers. After she gave 46 flowers away, she had 138 left. How many flowers were in each bunch?

A
3
B
4
C
6
D
8
11

The graphic models one of the properties used to solve a one variable equation.Which property is being modeled?

Question illustration
A
addition property of equality
B
commutative property of multiplication
C
distributive property of multiplication
D
associative property of addition
12

What value of x is in the solution set of the inequality –2(3x + 2) > –8x + 6?

A
–6
B
–5
C
5
D
6
13

Which property should Remus use to solve the equation below?

Question illustration
A
division property of equality
B
addition property of equality
C
subtraction property of equality
D
identity property of equality
14

Which number line represents the solution set for the inequality 3x < –9?

A
A number line from negative 4 to 4 in increments of 1. A point is at negative 3 and a bold line starts at negative 3 and is pointing to the left.
Option A
B
A number line from negative 4 to 4 in increments of 1. A point is at negative 3 and a bold line starts at negative 3 and is pointing to the right.
Option B
C
A number line from negative 4 to 4 in increments of 1. An open circle is at negative 3 and a bold line starts at negative 3 and is pointing to the left.
Option C
D
A number line from negative 4 to 4 in increments of 1. An open circle is at negative 3 and a bold line starts at negative 3 and is pointing to the right.
Option D
15

What interval includes all possible values of x, where –3(6 – 2x) ≥ 4x + 12?

A
(–∞, –3]
B
[–3, ∞)
C
(–∞, 15]
D
[15, ∞)

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