AnswersWHS Pre-Algebra - MA3119 A-CRTopic Test

Topic Test — Cumulative exam Answers

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Tram left a tip of $9, which was of the total cost of the food. Which shows the correct equation and value of x, the total cost of the food?

Question illustration
A
; x = $1.35
Option A
B
; x = $60
Option B
C
; x = $1.35
Option C
D
; x = $60
Option D
22
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Kedwin has $150.00 and wants to buy a new pair of headphones that cost $175.00 plus 10% shipping. He decides to wait until the headphones go on sale. What is the smallest sale rate that he needs to be able to afford them?

A
10%
B
20%
C
25%
D
30%
23

Which answer shows 35,067,800 written in scientific notation?

A
3.50678 times 10 Superscript negative 7
Option A
B
3.50678 times 10 Superscript 7
Option B
C
3.50678 times 10 Superscript 8
Option C
D
35067.8 times 10 Superscript 2
Option D
24

The table below shows the cost per pound of different vegetables.Prices of VegetablesVegetableCost (per pound)Potatoes$3.89Squash$4.68Carrots$1.67Cucumbers$2.59What is the estimated cost for 4.5 pounds of cucumbers?

A
$10
B
$15
C
$16
D
$25
25

Which equations are equivalent to ? Select three options.

Question illustration
A
m = StartFraction 10 over 4 EndFraction
Option A
B
m = negative StartFraction 10 over 4 EndFraction
Option B
C
m = negative five-halves
Option C
D
StartFraction 11 over 4 EndFraction + m = negative one-fourth
Option D
E
Negative five-fourths + m = negative StartFraction 15 over 4 EndFraction
Option E
26

Which answer choice is equivalent to the expression below?

Question illustration
A
Negative 17 minus 9 n
Option A
B
Negative 14 minus 12 n
Option B
C
11 + 5 n
Option C
D
14 + 2n
27

Dorrian graphed the distance, y, traveled by 2 bikes in x seconds. BikesIf the two bikes are racing a distance of 100 feet, which bike will win the race?

Question illustration
A
Bike 2 will win because the slope of the line for Bike 2 is , which is greater than the slope of the line for Bike 1.
Option A
B
Bike 2 will win because the slope of the line for Bike 2 is , which is greater than the slope of the line for Bike 1.
Option B
C
Bike 1 will win because the slope of the line for Bike 1 is , which is greater than the slope of the line for Bike 2.
Option C
D
Bike 1 will win because the slope of the line for Bike 1 is , which is greater than the slope of the line for Bike 2.
Option D
28

Julio predicted that the average high temperature for January would be . The actual average high temperature was 4 degrees higher than Julio’s prediction. Which describes the actual average high temperature for January?

Question illustration
A
–11°C
B
–3°C
C
3°C
D
11°C
29

Tobie is estimating the sum of the expression -50+51.Which reasoning would lead Tobie to the right answer?

A
–50 + 50 is equal to -100 plus -1 is -101.
B
–50 + 50 is equal to zero plus -1 is -1.
C
–50 + 50 is equal to zero plus 1 is 1.
D
–50 + 50 is equal to 100 plus 1 is 101.
30

What is the slope, m, and the y-intercept of the line that is graphed below?

Question illustration
A
m = 1; (0, 3)
B
m = 1; (–3, 0)
C
m = –1; (0, 3)
D
m = –1; (–3, 0)
31

Laura determined the difference between 8 and –2 using the additive inverse. Her steps are shown below. Which best describes the error in Laura’s work?

Question illustration
A
The 8 should have remained positive.
B
The 2 should have remained negative.
C
The addition of –8 and 2 was computed incorrectly.
D
The 8 should have remained positive, and the 2 should have remained negative.
32

What is the slope of the line on the graph below?

Question illustration
A
–
Option A
B
One-half
Option B
C
1
D
2
33

Jorge wrote the equation . What is the value of x?

Question illustration
A
–4
B
–2
C
2
D
4
34

Which expression is equivalent to ?

Question illustration
A
10 Superscript 12
Option A
B
11 Superscript 12
Option B
C
12 Superscript 10
Option C
D
12 Superscript 11
Option D
35

What is the value of ?

Question illustration
A
Negative StartFraction 81 Over 16 EndFraction
Option A
B
Negative StartFraction 16 Over 81 EndFraction
Option B
C
StartFraction 16 Over 81 EndFraction
Option C
D
StartFraction 81 Over 16 EndFraction
Option D
36

Allison is evaluating the expression using integer tiles. She begins with 5 negative tiles as shown.What should Allison do next to find the value of the expression?

Question illustration
A
remove 2 negative tiles
B
remove 3 negative tiles
C
add 2 negative tiles
D
add 7 negative tiles
37

Nico dropped the brand new bottle of dog shampoo and 3 ounces spilled out. He measures ounces each time he shampoos his dog and the bottle of shampoo originally contained ounces. Which is the correct equation and value of x, the number of times Nico can bathe his dog using this one bottle?

Question illustration
A
; times
Option A
B
; times
Option B
C
; times
Option C
D
; times
Option D
38

Giovanna used the calculations below to determine the height of a stack of 7 books that are each inches thick. What was her error?

Question illustration
A
The fraction was not simplified in the last step.
B
Seven was not multiplied by .
Option B
C
There should be a subtraction step, not an addition step.
D
Two should have been multiplied by .
Option D
39

Takehiko brought grapes to school. He gave 15 of his grapes to his friends. If he is left with 45 grapes, how many did he bring to school?

A
3
B
15
C
30
D
60
40

What are the steps for using integer tiles to evaluate the expression ?

Question illustration
A
Start with 15 tiles and separate them into 3 same-sized groups.
B
Start with 45 tiles and separate them into 15 same-sized groups.
C
Assemble 45 groups of 3 tiles each.
D
Assemble 45 groups of 15 tiles each.

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