2011AMC12B 2011AMC12B Problem 1 Whatis 表达式的值是多少 Problem2 Josannastestscorestodateare , , , ,and .Hergoalistoraisehertestaverageat least pointswithhernexttest.Whatistheminimumtestscoreshewouldneedtoaccomplishthis goal? Josanna 目前的考试分数是9 ,8 ,7 ,6 和85,她的目标是靠下次考试将她...
2011AMC10 2011AMC10 2011AMC10 美国数学竞赛 美国数学竞赛 美国数学竞赛 BB B 卷卷 卷 - 2 - - 2 - - 2 -5. In multiplying two positive integers a and b, Ron reversed the digits of the two-digit 5. In multiplying two positive integers...
2011AMC12B答案 1. Add up the numbers in each fraction to get , which equals . Doing the subtraction yields 2. Take the average of her current test scores, which is This means that she wants her test average after the sixth test to be Let be the score that Josanna receives on her si...
2011 2011 2011 冲刺课件 冲刺课件 冲刺课件 页脚内容 页脚内容 页脚内容33 3 9. A rectangular 9. A rectangular 9. A rectangular region is bounded by the graphs of the equations y=a, y=-b, x=-c, and x=d, where a, region is bounded by the graphs of the equations y=a, y=-b, x...
2011AMC10美国数学竞赛A卷1. A cell phone plan costs $20 each month, plus 5 per text message sent, plus 10 for each minute used over 30 hours. In January Michelle sent 100 text messages and talked for 30.5 hours. How much did she have to pay?(A) $24.00(B) $24.50(C) $25.50(D)...
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2011 AMC 12A Problems/Problem 1 Problem A cell phone plan costs dollars each month, plus cents per text message sent, plus cents for each minute used over hours. In January Michelle sent text messages and talked for hours. How much did she have to pay? Solution The base price of Michelle...
AMC 8 - 2011年真题答案 艾蕾特教育 满满干货的出国留学数学培训信息1. E 2. E 3. D 4. C 5. D 6. D 7. C 8. B 9. E 10. C 11. A 12. B 13. C 14. C 15. D 16. C 17. A 18. D 19. D 20. D 21. C 22. D 23. D 24. A 25. A...
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2011 AMC 8 Problems Problem 1 Margie bought apples at a cost of cents per apple. She paid with a 5-dollar bill. How much change did Margie rec..