Version C Pre-Algebra Practice Semester 1Exam

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1 Version C Pre-Algebra 0 04 Practice Semester Exam. Which number is equivalent to 7? 4. Which ordered pair is a solution of the system graphed? Which fraction is equivalent to 0.576? , 0,7 5,,5. A construction company was building a skyscraper in New York City and was able to assemble the walls of the building at a rate of one foot per hour. Which line best represents how fast the building was getting built? 5. What value of x makes the system of equations true? y 0x4 y 4x4 x 4 x x 0 x Line A Line B Line C Line D 0 04 GO ON Clark County School District Revised 0//0

2 Version C Pre-Algebra 0 04 Practice Semester Exam 6. A music website sold 94 single songs and 67 albums today. The number of single downloads has been increasing by each day. The number of album downloads has been decreasing by 5 each day. If these trends continue, in how many days will the numbers of single downloads be ten times the number of album downloads? days days 5 days 4 days 7. Which equation has infinitely many solutions? 0. Which expression is equivalent to x 4 x 6x x 6 6 x x 6?. Choose the best values for M and N so that the equation will have no solutions. x Mx N 4 6 7x 6 4x x 6 M = 4 and N = 4 x 6x M = 4 and N = x 4 5x M = 6 and N = 4 5x x x M = 6 and N =. Evaluate the expression Solve for x. x x x x 4 x 4 9. If t y y 4 y, what is the value of t? x x 6 4. The length of a student desk is measured to be units. What is the best choice for the units for this measurement? kilometers meters centimeters millimeters 0 04 GO ON Clark County School District Revised 0//0

3 Version C Pre-Algebra 0 04 Practice Semester Exam 4. A calculator displays this number..7 E Which is this number in scientific notation? Tommy and Larry began reading the same book at the same time. Each boy reads at different rates. After 4 minutes, Tommy is on page 9. After minutes, Larry is on page 6. Who is reading at a greater rate of change? Tommy s reading rate which is pages/min. Larry s reading rate which is How much larger is 0? 5 90 compared to pages/min. Tommy s reading rate which is pages/min. Larry s reading rate which is pages/min. times 0 times 00 times 000 times 7. Kate borrows $40 from her mother and agrees to pay her back the same amount each month without interest. After 4 month she still owes her mother $0. Choose the linear function that models the amount Kate owed her mother each month since she borrowed the money. y40 40x y40 5x y0 40x y0 5x 0 04 GO ON Clark County School District Revised 0//0

4 Version C Pre-Algebra 0 04 Practice Semester Exam Use the given information to answer the following questions, -0. Function : x y The table shows points on a line. x y What are the y-intercept and rate of change of the line? Function : yx Function : y-intercept = Rate of change = 9 y-intercept = 0 Rate of change = 6 y-intercept = Rate of change = y-intercept = 4 Rate of change =. What is 6.00 written in standard form?. What is the y-intercept for Function? Which function has a greater rate of change? Function Function Function All are the same 0. Which function is a proportional relationship? Function Function Function None ,00,000 0,000,000. What is written in scientific notation? How many solutions does the following system of equations have? x y x y One solution Two solutions Infinitely many No solutions GO ON Clark County School District Revised 0//0

5 Version C Pre-Algebra 0 04 Practice Semester Exam 5. Which ordered pair satisfies both equations? y x y x, 9 4,4 4,0, 6. Given the graph of the line, what is the correct linear equation? 7. Solve for k. 4 7 k k k 0 k k 9 k 5. Which of the following numbers are not rational? y x 6 y x y x yx I. II. III. IV. III and IV II and III IV only II only GO ON Clark County School District Revised 0//0

6 Version C Pre-Algebra 0 04 Practice Semester Exam 9. Which of the following representations are linear functions.. Which input/output pairs match the graph below? I.,5, 4, 4, 5, 7 II. y x III. Input 0 Output I only II only II and III I and III 0. Two cars were traveling to California. The distance traveled by Car # is displayed in the table and the distance traveled by Car # is modeled by the equation. Which car is going faster?,06,,,5,0,6, 5, 0,6,,,5 0,,6, 5,. The distance from the sun to the planets are shown below: Car #: Hours Miles driven Earth Saturn Uranus.5 0 km km km When these three distances are added together they total the distance from the sun to Neptune. How far it is from the sun to Neptune? Car #: y65x km x is time in hours y is miles driven km 5. 0 km Car # km Car # They are the same GO ON Clark County School District Revised 0//0

7 Version C Pre-Algebra 0 04 Practice Semester Exam. Which of the following tables represent functions? I. Input Output Which graph below represents a function? II. Input Output 0 4 III. Input Output IV. Input Output I and IV only II and III only I, II, and III only I, III, and IV only GO ON Clark County School District Revised 0//0

8 Version C Pre-Algebra 0 04 Practice Semester Exam 5. Which graph best represents the equation y x? 5 6. Triangle ABC is similar to triangle KLM where the ratio of proportionality is 6,and AB = 4 centimeters. What is KL? B L K M A 4 cm cm 4 cm 44 cm C 7. Two neighbors are filling their swimming pools that are the same size. Which pool is filling faster? Pool #: Water in pool (inches) Pool #: y x is time in hours is inches Minutes Pool # Poo # They are the same GO ON Clark County School District Revised 0//0

9 Version C Pre-Algebra 0 04 Practice Semester Exam. For which equation is the set of ordered pairs a solution?,5 0,,, yx yx y x y x 9. In the diagram, AB the hypotenuse of the right triangle ABD and BC is the hypotenuse of the right triangle BCE. C E B D A I. II. Which statement(s) are true? CE BD = CB BA ABDis similar to BCE III. The slope of AB is the same as the slope of BC. I and II only II and III only I, II, and III All are true GO ON Clark County School District Revised 0//0

10 Practice C Pre-Algebra 0 04 Semester Exam Constructed Response. The table shows the approximate populations of several countries in 009. Country China United States Population (a) How many times larger is China s population that the United States? Explain each step of your work and state the answer GO ON Clark County School District Revised 0//0

11 Practice C Pre-Algebra 0 04 Semester Exam Constructed Response. Tommy s Telephone service offers the following plans: Plan One: $60 monthly fee plus unlimited data. Plan Two: $70 monthly fee plus 5 cents per Megabyte of data. (a) Write a linear equation to find when the number of visits for Plan One equals the cost for Plan Two. (b) After how many Megabytes will the cost of the two plans be equal? Show your work to support your answer GO ON Clark County School District Revised 0//0

12 Practice C Pre-Algebra 0 04 Semester Exam Constructed Response. Explain the difference between a rational number and an irrational number. Give an example of each GO ON Clark County School District Revised 0//0

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