AnswersGrade 7 MathematicsProportional Relationships

Practice Test Answers

14 verified answers1 views
1
Free Preview

What was Ming’s error?

A
He made a mistake when finding the product of 0 point 4 0 dollars and 6 .
B
He determined pounds per dollar by dividing 10 by 25 but wrote the unit rate as a dollar value.
C
He made a mistake when finding the quotient of 10 pounds and 25 dollars.
D
He divided the numerator and the denominator of the fraction by 25 .
2
Free Preview

Which statement about Aimee’s graph is true?

A
Aimee’s graph is correct because the ratio ratio of 2 thirds to 1 is equal to ratio of 2 to 3 , which her graph shows in each point.
B
Aimee’s graph is correct because it shows 3 inches of plant growth every two weeks.
C
Aimee’s graph is incorrect because the ratio ratio of 2 thirds to 1 is equal to ratio of 3 to 2 , so she should have switched her points.
D
Aimee’s graph is incorrect because it shows 2 inches of plant growth with each point instead of 2 thirds of an inch.
3

What is the constant of proportionality of the ratio of the number of blue drops used to the number of red drops used?

A
5
B
2
C
0 point 5
D
0 point 2
4

If all of the binders cost the same amount, which statement is true?

A
It will cost 42 dollars for 28 binders.
B
It will cost 12 dollars for 18 binders.
C
It will cost 48 dollars for 48 binders.
D
It will cost 20 dollars for 30 binders.
5

Which statement is supported by the table?

A
The relationship between the number of cartridges purchased and the total cost is proportional for neither members nor nonmembers.
B
The relationship between the number of cartridges purchased and the total cost is proportional for both members and nonmembers.
C
The relationship between the number of cartridges purchased and the total cost is proportional for members but not for nonmembers.
D
The relationship between the number of cartridges purchased and the total cost is proportional for nonmembers but not for members.
6

Which is equivalent to “12 chairs for every 3 tables”?

A
12 chairs per 3 tables
B
12 chairs for each table
C
3 chairs for every 12 tables
D
3 tables per chair
7

The rate at which an airplane flew was 700 miles over 2 hours How can the unit rate be determined?

A
by writing an equivalent rate with a denominator of 1
B
by writing an equivalent rate with a numerator of 2
C
by writing an equivalent rate with a denominator of 2
D
by writing an equivalent rate with a numerator of 1
8

Rosa earns 12 dollars per hour. In 7 point 5 hours, she will earn x dollars. Which is a valid proportion that can be used to solve the problem?

A
x over 12 is equal to 1 over 7 point 5
B
1 over 12 is equal to x over 7 point 5
C
12 over 1 is equal to x over 7 point 5
D
12 over 1 is equal to 7 point 5 over x
9

What is the value of x in the proportion? 180 kilometers over 3 hours is equal to 540 kilometers over x

A
12
B
6
C
60
D
9
10

Holly earns $30 for babysitting 5 hours. She earns $28 when she does chores for 4 hours. Which compares the unit rates?

A
The unit rate for doing chores is $2 per hour more than the unit rate for babysitting.
B
The unit rate for babysitting is $1 per hour more than the unit rate for doing chores.
C
The unit rate for babysitting is $2 per hour more than the unit rate for doing chores.
D
The unit rate for doing chores is $1 per hour more than the unit rate for babysitting.
11

Which graph correctly depicts his earnings, including the last week?

A
Image with description First quadrant graph with title Josiah's Earnings. The x axis is labeled chores completed and goes from 0 to 10. The y axis is labeled money earned and goes from 0 to 20 by two by ones. There is a point at (4 comma 12), a point at (6 comma 2), a point at (6 comma 18), and a point at (8 comma 8).
B
Image with description First quadrant graph with title Josiah's Earnings. The x axis is labeled chores completed and goes from 0 to 10 by ones. The y axis is labeled money earned and goes from 0 to 20 by twos. There is a point at (4 comma 12), a point at (5 comma 18), and a point at (6 comma 18).
C
Image with description First quadrant graph with title Josiah's Earnings. The x axis is labeled chores completed and goes from 0 to 20 by twos. The y axis is labeled money earned and goes from 0 to 18 by twos. There is a point at (12 comma 4), a point at (15 comma 5), and a point at (18 comma 6).
D
Image with description First quadrant graph with title Josiah's Earnings. The x axis is labeled chores completed and goes from 0 to 10 by ones. The y axis is labeled money earned and goes from 0 to 20 by twos. There is a point at (4 comma 12), a point at (5 comma 15),and a point at (6 comma 18).
12

What is the constant of proportionality?

A
5
B
0 point 2
C
2
D
0 point 5
13

Which statement best describes the graphs?

A
Neither graph 1 nor graph 2 represents a proportional relationship.
B
Graph 2 represents a proportional relationship, but graph 1 does not.
C
Graph 1 represents a proportional relationship, but graph 2 does not.
D
Both graph 1 and graph 2 represent proportional relationships.
14

Which ordered pair could represent the number of hours and amount Geraldo is paid today at the same hourly wage?

A
open paren 8 comma 100 close paren
B
open paren 4 comma 60 close paren
C
open paren 3 comma 42 close paren
D
open paren 5 comma 62 close paren

Did you find these answers helpful?

More from this Course

practice test
16 verified answers

Practice Test

practice test
16 verified answers

Practice Test

practice test
16 verified answers

Practice Test