PSA8BZD - Grade 8 Mathematics Practice Test 2010
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Part A)

 

 

The list below shows the number of pages Marian read in her library book each day for one week.

11, 13, 11, 15, 20, 17, 11

What is the mode of the number of pages that Marian read each day?

 

Select one:
Part B)
Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):

  

Dan earned some money working for his uncle. He spent 1/3 of the money on magazines and 1/4 of the money on a snack. Which of the following fractions represents the part of Dan’s money he did not spend?

Select one:

 

Which of the following inequalities is true?

Select one:

 

The table below shows a linear pattern.

Which of the following expressions represents the value of the nth term in the pattern?

Select one:

 

What is the solution to the equation below?

3x+9=-6

x=?

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):

 

 

The students in an eighth-grade class had a dance. They spent $500 for a local band. The equation below can be used to find the total profit, y, if the students sold x tickets to the dance.

y=4x-500

What does the 4 represent in the equation?

Select one:

 

What is the value of the expression below?

Select one:

 

Mr. Jamison is the principal at a new school with an enrollment of 430 students. He surveyed 10% of the students at his school to find out which colors they would like as the school colors. What is the number of students in the sample size of the principal’s survey?

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):

 

The rate of interest paid on savings accounts at a bank increased by %. Which of the following shows % written as a decimal?

Select one:

 

What is the value of the expression below?

8+|-3|-|7|

Select one:

 

The table below shows the area of a trapezoid when the lengths of the bases stay the same but the height is changed.

What is the area of the trapezoid when the height is 17 meters?

Select one:

 

A box of identically shaped light bulbs contains the following:

• 11 red light bulbs

• 13 blue light bulbs

• 10 green light bulbs

• 16 orange light bulbs

If 1 light bulb is chosen at random from the box, what is the probability that it will be green?

Select one:

 

Elena and Kristen started new jobs at the same time. The table below shows their annual salaries for the first 4 years.

 

 

Elena’s salary continued to increase by the same amount each year, and Kristen’s salary continued to increase by the same amount each year. Which of the following statements is true for year 6?

 

Select one:

 

David drew Triangle ABC on a coordinate plane, as shown below.

David reflected Triangle  ABC over the x-axis. What are the coordinates of the image of point A?

Write your answer in the following format:

(x,y)

with no spaces.

Type your answer below:

 

The chart below shows the number of goals scored by the Sharks soccer team and their opponents for 5 games.

In what percent of the games did the Sharks score more goals than their opponents?

Select one:

 

The relationship between the perimeter and side length of a regular hexagon is shown on the graph below.

What happens to the perimeter of a regular hexagon as its side length increases by 1?

Select one:

 

The formula below can be used to find S, the sum of all integers from 1 to n, where n is any positive integer.

What is the value of S when n = 50?

Select one:
Part A)

 

A cafeteria has a recycling container for cans. The recycling container has a lid that is in the shape of a circle with an opening in the center that is also in the shape of a circle. The lid and some of its dimensions are shown in the diagram below.

The shaded part of the diagram represents the opening in the lid.

a) What is the circumference, in inches, of the lid of the recycling container?(Use 3.14 for π)

 

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part B)

a)continued Show or explain how you got your answer. 

 

Type your answer below:
Part C)

b) What is the area, in square inches, of the lid, including the opening? (Use 3.14 for π)

 

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part D)

b)continued Show or explain how you got your answer. 

 

Type your answer below:
Part E)

c) What is the area, in square inches, of the lid, not including the opening? (Use 3.14 for π)

 

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part F)

c)continued Show or explain how you got your answer.

Type your answer below:

 

The mean height, in inches, of 5 girls on the middle school basketball team is exactly 66 inches. The table below lists the heights of 4 of the girls.

Which of the following is the height of Becky?

Select one:

 

What is 150% of 48?

 

Select one:
Part A)

 

Danielle measured two of the computer screens in her school’s computer lab. The two screens and some of their dimensions are shown below.

 

 

a) What is the area, in square inches, of Screen 1?

 

 

 

 

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part B)

a)continued Show or explain how you got your answer.

 

Type your answer below:
Part C)

b) What is x, the diagonal length in inches of Screen 1?

 

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part D)

b)continued Show or explain how you got your answer.

 

Type your answer below:
Part E)

c) Which computer screen, Screen 1 or Screen 2, has the greater area?

 

Select one:
Part F)

c)continued Show your work or explain how you got your answer.

Type your answer below: