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86 79 80 82 Stephanie scored 88, 70, 84, and 72 on her first four science tests. What score does Stephanie need on her fifth science test to receive a mean score of 80?
The table below shows the number of words a student typed during five timed sessions.
w = 3m + 60 w = 60m + 3 w = 102m - 117 w = -117m + 102 Look at the function that is graphed below. What are the zero(s) of the function? 2 -1, 3 -4, 4 -3, 1, 5 Look at the pattern below. -83.2 -41.6 41.6 83.2 If this pattern continues, what is the sixth term? 2.6, −5.2, 10.4, −20.8, . . . Look at the table below. Which of these equations describes the relationship between the x-values and the y-values? x y 1 3 y= 2x - 5 y= x + 2 y= x + 5 y= 5x - 2 2 8 13 3 18 4 What is the slope of the line that passes through the points (-3, -2) and (1, 3)? The table below shows a cubic relationship between x and y. x 2 3 4 5 1 6 7 216 125 27 64 1 8 y ? If this pattern continues, what is the value of y when x = 7? white grey A store sells T-shirts. The matrices below show the number of T-shirts in the store on November 1 and December 1. If the store did not add any additional T-shirts between November 1 and December 1, what size T-shirt sold the least? # of t-shirts Nov. 1st s l 100 150 s 150 160 m 170 220 l T-SHIRTS IN THE STORE 200 240 xl white grey xl m # of T-shirts on Dec. 1st 100 40 s 110 120 m 150 130 l 140 150 xl A box of cereal contains 1 of 5 different prizes. A simulation was conducted to predict how many boxes of cereal must be bought in order to get all 5 prizes. The results of 30 trials are shown in the stem-and-leaf plot below. Number of Boxes Bought 1 KEY 5= 15 0 1 2 3 4 5 8 9 3 5 6 7 8 8 9 9 0 1 2 3 3 5 6 7 5 1 1 2 2 3 4 5 8 8 9 Based on the results of the simulation, what is the total number of people out of 150 who would need to buy less than 10 boxes of cereal to get all 5 prizes? 3 5 30 15 Steve bought 3 hot dogs and 1 large soda using the menu shown below. The total cost of Steve’s purchase was less than $6.75. Which of these inequalities best represents the cost (c) of each hot dog? c < $2.75 c > $2.75 Large Soda $1.50 Item Price Hot Dog $ Lunch Menu c < $1.75 c > $1.75 The width and length, in feet, of a rectangular playground are x and x + 2. A fence costs $17 per foot. Which of these expressions represents the cost, in dollars, to build a fence around this rectangular playground? 17[x+(x+2)] 17+x+(x+2) 17x(x+2) 17[x+(x+2)+x+(x+2)] A spinner is divided into 8 equal sections as shown below. What is the theoretical probability that the arrow will not land on a section labeled E or O? E N N S E T R O The test scores for two classes are shown below. Class A 8 8 8 6 2 4 2 0 0 TEST SCORES 0 6
7
8
9 2 5 2 6 6 7 8 4 4 4 Class B 5 6 What is the differences between the ranges of the scores for Class A and Class B? =65 KEY 5 2=52 Which of these statements must be true? Look at the system of equations below. y = -2x + 5
y = -2x + 3 The line intersect at (3, 5) The lines intersect at (-.5, 4) The equations represent the same line The equations represent parallel lines Look at the pattern shown in the table below. If this pattern continues, what is the value of y when x is 10? 66 108 89 129 x y 1 9 12 2 17 3 24 4 33 5 Alexis advertised that 25 percent of the cars that she sold were red. Which of these could not be used to simulate the number of red cars that Alexis sold? Draw a card from a deck of cards numbered 1-24 Toss a fair coin once Use a random number generator to generate the numbers 1-8 Spin a spinner with 4 equally-sized sections What is the median number of people on the boards of directors of these 23 companies? The table below shows the number of people on the boards of directors of 23 companies. # people 7 3 4 5 6 # companies 10 5 3 2 3 The matrix below shows the grades on an algebra test and a science test for three students. Lauren increased her grade on the next science test by 5%. What was Lauren’s grade on her next science test? Leo 74 82
Lauren 94 80
Anthony 91 78 Algebra Science Test Grades Look at the function that is graphed below. Which of these describes the range of this function? 0 < y < 5 all whole numbers all real numbers y > 0 Eric and Pam are each saving money to buy a car. Eric has $750 saved and will save an additional $30 a week. Pam has $1,200 saved and will save an additional $20 a week. How many weeks will it take Eric and Pam to save the same amount of money? 50 Weeks 55 Weeks 39 Weeks 45 Weeks The mean misrepresents the test scores because 100 is an extreme value The median misrepresents the test scores because 100 is an extreme value The mean represents the test scores because it is the middle value of these test scores The median represents the test scores because it is the one that occurs the most The test scores for the nine students in Mrs. Miller’s history class are shown below. Which of the following statements is true about the test scores? 68 69 70 71 71 72 72 72 100 Look at the pattern shown below. If this pattern continues, what is the sixth term? 2, 6, 18, 54, . . . Internet Company A charges a $25 fee plus an additional $0.35 per hour. Internet Company B charges a $10 fee plus an additional $0.50 per hour. For what number of hours are the charges for both companies the same? A fish tank at a pet store has 3 red fish, 6 blue fish, 7 yellow fish, and 4 orange fish. If one fish is chosen at random from the tank, what is the probability that the fish will be blue or yellow? Each student pays a one-time fee of $25 to be in the chorus. Each student also pays an additional $5 each month for travel expenses. In how many months will a student spend $100 to be in the chorus? Survey 50 randomly selected people who leave a video rental store Survey 50 randomly selected residents in the viewing area Survey 50 randomly selected residents from the local phone book Survey 50 randomly selected people who enter the television station A television station will conduct a survey to determine the most popular television show in its viewing area. Which of these methods provides the most representative sample? The line y = -2x + 5 is graphed below. What is the value of x when y is -3? 11 1 -1 4 |