Solution Lining up the numbers (5, 5, 6, 8, 106), we see that the median weight is 6 pounds. The average weight of the five kids is Therefore, the average weight is bigger, by . pounds, making the answer . 6. Problem The number in each box below is the product of the numbers...
the total bill. What was the total bill? 5.Hammie is in the grade and weighs 106 pounds. His quadruplet sisters are tiny babies and weigh 5, 5, 6, and 8 pounds. Which is greater, the average (mean) weight of these five children or the median weight, and by how many pounds?
336? 337,338, so the answer is= 335.5.Therefore the 44、 n umbers are(B) 338Solution 2Let the丄叫umber be X". Then our desired number is- r ' 1 r 1 二 so we have that&r-3 = 2013 =k x= = 336 =+ 2 = | (B) 338Our in tegers areSolution 3Let the first term beE. ...
8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 A ll AMC 10 Problems and Solutions 2013 AMC 12B (Problems • Answer Key • Resources (/Forum/resources.php?c 182cid 44year 2013)) ...
8 2013AMC10BAnswerKey 9 2013AMC10BProblems/Problem16 Problem Intriangle,mediansandintersectat,,,and.Whatisthe areaof? Solution Solution1 Letususemasspoints:Assignmass.Thus,becauseisthemidpointof,alsohasamassof. Similarly,hasamassof.andeachhaveamassofbecausetheyarebetweenandandand ...
AMC Junior 2013澳大利亚数学AMC-C：7-8年级英语历年真题
2004 AMC 8 Answers Q. A. Correct Answer 1. (B) 102 2. (B) 6 3. (A) 8 4. (B) 4 5. (D) 15 6. (C) 3 7. (B) 155 8. (B) 7 9. (D) 58 10. (E) $15 11. (C) 6.5 12. (B) 8 13. (E) Amy, Celine, Bill 14. (C) 22 1/2 ...
AMC10A_2013_answer_kays 下载积分: 1600 内容提示: AMC10A 2013 Answer KeysMathematics Association of AmericaFebruary 13, 2013The followings are the answers to the problems appeared in AMC10A 2013.1. C2. B3. E4. C5. B6. D7. C8. C9. B10. E11. A12. C13. B14. D15. D16. E17. B18...
Solution We are given that the area of is , and that . The area of a triangle: Using as the height of , and solving for b, , which is See also 2013 AMC 12A (Problems • Answer Key • Resources (/Forum/resources.php?c 182cid 44year 2013)) Preceded by Followed by First Questi...
7. Before beginning the test, your proctor will ask you to record certain information on the answer form. 8. When your proctor gives the signal, begin working on the problems. You will have 75 minutes to complete the test. 9. When you finish the exam, sign your name in the space ...