Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Worksheet #1: Solving Linear Equations (Glencoe Algebra I Text, 1997, 185) 1. What is the solution of m 4 7 ? A. 3 B. 23 C. 11 D. 211 1. ________ 2. What is the solution of 11 n 11 ? A. 0 B. 22 C. -22 D. none of these 2. ________ 3. The sum of two integers is -46. The greater integer is 13. What is the lesser integer? A. 59 B. -59 C. -33 D. 33 4. What is the solution of 26 y 884 ? A. 910 B. 858 C. 34 5. What is the solution of A. 45 B. 5 3 x 15 ? 5 C. 25 6. What is the solution of 5x 3 23 ? A. 4 B. -4 C. 5 7. What is the solution of A. -30 B. 30 n 8 2 ? 3 C. -18 8. What is the solution of 14 A. -72 B. 72 c 12 ? 6 C. 96 3. ________ 4. ________ D. -34 5. ________ D. 75 6. ________ D. -5 7. ________ D. 18 8. ________ D. -96 9. What is the supplement of an angle whose measure is x 28 ? A. (62 – x)o B. (118 – x)o C. (208 – x)o D. (152 – x)o 10. What is the measure of an angle that is twice its complement? A. 30o B. 60o C. 90o D. 120o 9. ________ 10. ________ 11. The measure of two angles of a triangle are 44o and 32o. What is the measure of the third angle? A. 76o B. 14o C. 44o D. 104o 11. ________ 12. What is the solution of 2x 7 5x 16 ? A. -3 B. 32 C. 23 3 12. ________ D. 3 A. identity 2 6x 3 x 5x 8 2x ? 3 B. no solution C. 6 D. 0 13. What is the solution of 14. What is the solution of 3h 6 52h 3 ? 3 9 3 A. 13 B. 13 C. 13 D. 9 13 15. Let x represent the lesser of two consecutive even integers. Which equation would you use to find the two integers if their sum is 126? A. x x 2 126 B. x 2x 126 C. x 2 x 4 126 D. xx 2 126 16. A number is added to 9. The result is then multiplied by 4 to give a new result of 120. What is the number? A. 27 34 B. 489 C. 39 D. 21 17. What is the solution for x of 2x y y ? A. 2y – 2 B. y – 2 C. y D. 0 18. Find the mean of the set of data 4, 6, 7, 7, 9, 11, 17, 21, 25 rounded to the nearest tenth. A. 7 B. 9 C. 11.9 D. 11.5 13. ________ 14. ________ 15. ________ 16. ________ 17. ________ 18. ________ 19. Find the median of the set of data 5.11, 7.07, 8.95, 6.89, 8.63, 8.95. A. 7.85 B. 8.95 C. 7.60 D. no median 19. ________ 20. Which is affected by extremely high or low values in a set of data? A. median B. mode C. mean D. All are affected 20. ________ Bonus A high school team had just won a conference mathematics contest. A reporter from the local paper asked the team captain, “How many gold, silver, and bronze medals did the team win?” The captain replied, “The product of the three numbers is 72 and their sum is the same as today’s date.” The reporter thought for a while and said, I know the date but I still can’t find the answer.” The captain exclaimed, “I’m sorry, I forgot to tell you that the smallest number of the medals was of bronze and the greatest number of medals was gold.” “Thank you,” replied the reporter, who then left to write the story. How many medals of each type were won? Bonus ________ ________ ________