2012-2015年AMC全美数学竞赛试题答案-.pdf,AMC Answer Key 2012~2017 年全美数学竞赛 10A 、10B 、12A 、12B 试题答案 American Mathematics Competition 0 AMC Answer Key 2017 AMC 12A Answer Key 1. D 6. B 11. D 16. B 21. D 2. C 7. B 12. B 17. D 22. E 3. B 8. D 13.
1.Answer(B):Susanspent2×12=$24onrides,soshehad50−12−24=$14 tospend. 2.Answer(A):Becausethekeytothecodestartswithzero,alltheletters representnumbersthatareonelessthantheirposition.Usingthekey,Cis 9−1=8,andsimilarlyLis6,Uis7,andEis1. ...
Problem8 Theratioofthelengthtothewidthofarectangleis:.Iftherectanglehasdiagonaloflength, thentheareamaybeexpressedasforsomeconstant.Whatis? :d 一个长方形的长和宽之比,如果长方形的对角线的长度是,那么它的面积可以写成, 这里k是常数,那么k是多少?
1 2014年美国数学竞赛AMC12B 真题 Leah has coins, all of which are pennies and nickels. If she had one more nickel than she has now, then she would have the same number of pennies and nickels. In cents, how much are Leah's coins worth? Problem 2 Orvin went to the store with just...
Problem 8 答案:E Solution 1:You can see that we can create a “stack” of 5 triangles congruent to the 7 small triangles shown here, arranged in a row above those 7, whose total area would be 5. Similarly, we can create another row of 3, and finally 1 more at the top, as follo...
2018AMC10AAnswerkey真题解析与答案翰林首发如需咨询国际竞赛,请微信咨询:国际竞赛小助手:linstitute1有关国际课程可微信咨询:国际课程
8 一张学校戏剧票要花美元,其中是整数。一组九年级学生买的票总共花了美元,一组十 年级学生买的票总共花了6美元。问x有少个可能的值? 1 2010AMC12B Problem AmonthwithdayshasthesamenumberofMondaysandWednesdays.Howmanyoftheseven daysoftheweekcouldbethefirstdayofthismonth?
8 2017AMC10B 2017AMC10BAnswerKey 12345678910111213 BCEDDBCCDEDAC 141516171819202122232425 DEABDEBDDCCE 9 2018AMC10B 2018AMC10B Problem1 Katebakesa-inchby-inchpanofcornbread.Thecornbreadiscutintopiecesthat measureinchesbyinches.Howmanypiecesofcornbreaddoesthepancontain?
8 2010AMC12B Problem25 Foreveryinteger,letbethelargestpowerofthelargestprimethatdivides.For example.Whatisthelargestintegersuchthatdivides ? 对于每个整数,令表示能够整除的最大质因数的最大幂。例如 。问使得能够整除 的最大整数是少? 9 2010AMC12B 2010AMC12BAnswerKey 12345678910111213 CAEBDDCBEBEDC 141516171...
016AMC10AAnswerKey 12345678910111213 BCCBDDDCDBDAB 141516171819202122232425 CADACEBDDAEA 10 2017AMC10A 2017AMC10A Problem1 Whatisthevalueof? 表达式的值是多少? Problem2 Pablobuyspopsiclesforhisfriends.Thestoresellssinglepopsiclesforeach,-popsicleboxes foreach,and-popsicleboxesfor.Whatisthegreatestnumberofpopsicl...