Unit 9 Practice Test - Part 2

11.  Sarah runs 3.5 miles each day. She uses the equation shown below to help determine some information about her running.

3.5x = y

What do the variables x and y most likely represent in Sara’s equation?

• The variable y represents Sara’s rate, in miles per hour, and the variable x represents the total time, in hours, she runs each day.

• The variable x represents Sara’s rate, in miles per hour, and the variable y represents the total time, in hours, she runs each day.

• The variable y represents the total number of miles Sara runs in x days.

• The variable x represents the total number of miles Sara runs in y days.

Tags

CCSS.6.EE.C.9

12.  Mr Kusick unpacks full boxes of textbooks to get ready for the school year. Each full box contains the same number of textbooks. The table shows the numbers of textbooks that Mr Kusick unpacks from different numbers of boxes.

Which statement about this relation is true?

• The number of novels is the dependent variable because it is determined by the number of boxes Mrs. Smith unpacks.

• The number of novels is the dependent variable because each number of novels is a multiple of the number of boxes in the same row.

• The number of boxes is the dependent variable because it is the first column in the table.

• The number of boxes is the dependent variable because it is the smaller number in each row.

Tags

CCSS.5.OA.B.3

13.  A group of students found a relationship between their thigh bone lengths and their heights. The table can be used to find the approximate height, in centimeters, of a student based on the student’s thigh bone length, in centimeters.

Based on the table, which statement describes the relationship?

• Multiplying the thigh bone length by 2.6 and then adding 65 centimeters will result in the approximate height.

• Multiplying the approximate height by 2.6 and then adding 65 centimeters will result in the thigh bone length.

• Adding 65 centimeters to the thigh bone length will result in the approximate height.

• Subtracting the approximate height from 65 centimeters will result in the thigh bone length.

Tags

CCSS.8.EE.C.8C

14.  There is a relationship between the number of hours a plumber works and the amount of money he earns. The plumber earns $100 for every 4 hours he works. Which statement about the relationship and the amount of money the plumber earns is true?

• The number of hours the plumber works is the dependent variable in the relationship, and he earns $125 for 7 hours of work.

• The number of hours the plumber works is the independent variable in the relationship, and he earns $175 for 7 hours of work.

• The amount of money the plumber earns is the dependent variable in the relationship, and he earns $400 for 7 hours of work.

• The amount of money the plumber earns is the independent variable in the relationship, and he earns $700 for 7 hours of work.

Tags

CCSS.6.EE.C.9

15.   Griffin saves $1.50 each day. Which equation describes the relationship between the number of days (d) Gary saves money and the total amount of money (m), in dollars, that he saves?

• d = 1.50m

• m = 1.50d

• m = d − 1.50

Tags

CCSS.6.EE.C.9

16.  There are 100 children playing in a park.

·   The number of boys (x) playing in the park is greater than 40.

·   The number of girls (y) playing in the park is less than 50.

Which values of x and y could be the numbers of boys and girls playing in the park?

• x = 75

  y = 45

• x = 45

  y = 55

• x = 65

  y = 35

• x = 25

  y = 75

17.  The table shows the relationship between the number of buses used on a field trip and the maximum number of riders.

Which equation describes the relationship shown in the table?

• r = b + 30

• r = 3b + 90

• r = 87b

• r = 30b

Tags

CCSS.6.EE.C.9

18.  Rylan knows the bicycle he wants to buy will cost more than $97.00. He has already saved $32.25 for the bicycle. His aunt has given him $40.00 to use to buy the bicycle. Which inequality describes all of the additional amounts of money (m), in dollars, that Rylan could save to be able to buy the bicycle?

• m > 24.75

• m > 27.75

• m > 32.25

• m > 40.00

19.  Olivia earned $500 last week. She will spend, at most, 30% of the money she earned and will save the rest. Which inequality represents all the possible amount of money, in dollars, d, Olivia will save?

• d ≥ 150

• d ≤ 150

• d ≥ 350

• d ≤ 350

Tags

CCSS.6.EE.B.8

20.  A small pond can hold up to 40 small fish and 15 large fish at one time. Which number line represents all the numbers of fish the pond can hold at one time?

• 
• 
• 
• 

Tags

CCSS.5.NBT.B.7