AnswersPre-Algebra - MA3119 A Distance LearningAddition and Subtraction Equations

Multiplication and Division Equations Answers

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What is the value of x in the equation ?

Question illustration
A
–32
B
–18
C
18
D
32
2
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Kori bought 56 boxes of tiles from the home improvement store, which was of the total number of boxes that they had. How many boxes of tiles did the store have?

Question illustration
A
32
B
98
C
224
D
392
3

Adam’s car traveled 465.3 miles on 16.5 gallons of gas. Which equation can be used to determine the average number of miles that the car traveled on each gallon of gas?

A
16.5x = 465.3
B
StartFraction x over 16.5 EndFraction = 465.3
Option B
C
465.3 x = 16.5
Option C
D
StartFraction x over 265.3 EndFraction = 16.5
Option D
4

Mia spent 30 minutes answering the math questions on the exam. This was of the total amount of time allotted for this section of the exam. To determine the total amount of time allotted for this section of the exam, Mia set up and solved the equation as shown below.Which best describes the error that Mia made?

Question illustration
A
Mia did not use the correct equation to model the given information.
B
Mia should have multiplied both sides of the equation by .
Option B
C
The product of is not equal to 18.
Option C
D
The product of and should have been the value of x.
Option D
5

Three-fifths of the members of the Spanish club are girls. There are a total of 30 girls in the Spanish club. Which statements can be used to solve for x, the total number of members in the Spanish club? Select three options.

A
Three-fifths x = 30
Option A
B
Three-fifths = StartFraction x over 30 EndFraction
Option B
C
Three-fifths (Five-thirds) x = 30 (five-thirds)
Option C
D
(Three-fifths (five-thirds) x = 30 (five-thirds)
Option D
E
x = 50
6

Which shows how to solve the equation for x in one step?

Question illustration
A
Three-fourths (four-thirds) x = negative 6 (four-thirds)
Option A
B
Three-fourths (4) x = negative 6 (4)
Option B
C
Three-fourths (4) x = negative 6 (3)
Option C
D
Three-fourths (four-thirds) x = negative 6 (three-fourths)
Option D
7

Otto spent of the money he had saved on a new video game. If the video game cost $48, how much money did he have before he bought the game?

Question illustration
A
36
B
64
C
144
D
192
8

Amit solved the equation for x using the steps shown below. What was Amit’s error?

Question illustration
A
Amit should have multiplied both sides of the equation by .
Option A
B
Amit should have multiplied both sides of the equation by .
Option B
C
The product of and 420 is not equal to 175.
Option C
D
The product of and –420 should have been the value of x.
Option D
9

Evelyn bought 8.4 gallons of gas for $23.94. Which equation can be used to determine the price of each gallon of gas?

A
8.4x = 23.94
B
StartFraction x over 8.4 EndFraction = 23.94
Option B
C
23.94 x = 8.4
Option C
D
StartFraction x over 23.94 EndFraction = 8.4
Option D
10

What is the value of x in the equation ?

Question illustration
A
–256
B
–100
C
100
D
256

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