AnswersPre-Algebra - MA3119 A Distance LearningDividing Integers

Dividing Integers Answers

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Louise used this figure to model the expression .What error did Louise make in her model?

Question illustration
A
The small arrows are pointed in the wrong direction.
B
The small arrows should all end in the same place as the large one.
C
The arrows should start at zero.
D
There should be one large arrow and 20 small arrows.
2
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The price of a stock decreased by 60 cents one week, decreased 10 cents the next week, and decreased another 20 cents the following week. What is the average change in the price of the stock over the three weeks?

A
–270 cents per week
B
–90 cents per week
C
–87 cents per week
D
–30 cents per week
3

Which situation is best modeled with a division expression?

A
the total cost of 4 pints of strawberries that sell for $3 each
B
the cost per pint of 3 pints of blueberries if the total cost was $6
C
the cost per pint of raspberries after applying a $1 coupon if the normal price was $3 each
D
the total cost of a pint of blackberries that sells for $3 and a pint of cherries that sells for $4
4

Brianna spent a total of $52 on 4 used video games. What was the average cost of a game?

A
$13 per game
B
$18 per game
C
$48 per game
D
$56 per game
5

Jin solves the equation .Which solution would help Jin determine the reasonableness of his answer?

Question illustration
A
dividing –25 by –10
B
multiplying –25 by –10
C
dividing –200 by –10
D
multiplying –200 by –10
6

The quotient of two numbers is negative. What must be true about the two numbers?

A
The dividend is negative.
B
The divisor is negative.
C
Either the dividend or the divisor is negative, but not both.
D
Both the divisor and the dividend are negative.
7

Which expression is modeled by this arrangement of tiles?

Question illustration
A
40 divided by (negative 10)
Option A
B
40 divided by 10
Option B
C
40 divided by 40
Option C
D
40 divided by 40
Option D
8

A quality control manager is inspecting four digital scales to see if they accurately reflect a weight of 0 ounces. The table shows the weight displayed on four empty scales.Empty Scale Weight DisplaysScale 1–1 ounceScale 2–2 ouncesScale 30 ouncesScale 4–1 ounceWhat is the average error in the scale displays?

A
–4 ounces
B
–1 ounces
C
0 ounces
D
1 ounce
9

Which expression can be used to check the answer to ?

Question illustration
A
Negative 14 times n
Option A
B
n divided by (negative 14)
Option B
C
56 times (negative 14)
Option C
D
n divided by 56
Option D
10

Jordan is using a number line to model the division expression . What should be a step in his work?

Question illustration
A
Draw a chain of bounces to the right, 12 units wide, starting at –24 and ending at 12.
B
Draw a chain of bounces to the left, 12 units wide, starting at 0 and ending at –24.
C
Draw a chain of bounces to the right, 12 units wide, starting at 0 and ending at 24.
D
Draw a chain of bounces to the left, 12 units wide, starting at 24 and ending at 0.

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