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2、2017AMC8考题及答案Problem1Whichofthefollowingvaluesislargest?Problem2Alicia,Brenda,andColbywerethecandidatesinarecentelectionforstudentpresident.Thepiechartbelowshowshowthevotesweredistributedamongthethreecandidates.IfBrendareceived36votes,thenhowmanyvoteswerecas
3、talltogether?Problem3Whatisthevalueoftheexpression?Problem4When0.000315ismultipliedby7,928,564theproductisclosesttowhichofthefollowing?
4、Problem5Whatisthevalueoftheexpression?Problem6Ifthedegreemeasuresoftheanglesofatriangleareintheratio,whatisthedegreemeasure
5、ofthelargestangleofthetriangle?Problem7Letbea6-digitpositiveinteger,suchas247247,whosefirstthreedigitsarethesameasitslastthreedigitstakeninthesameorder.Whichofthefollowingnumbersmustalsobeafactorof?Problem8MalcolmwantstovisitIsabellaafterschooltodayandknowsth
6、estreetwhereshelivesbutdoesn'tknowherhousenumber.Shetellshim,"Myhousenumberhastwodigits,andexactlythreeofthefollowingfourstatementsaboutitaretrue."(1)Itisprime.(2)Itiseven.(3)Itisdivisibleby7.(4)Oneofitsdigitsis9.ThisinformationallowsMalcolmtodetermineIsabell
7、a'shousenumber.Whatisitsunitsdigit?Problem9
8、AllofMarcy'smarblesareblue,red,green,oryellow.Onethirdofhermarblesareblue,onefourthofthemarered,andsixofthemaregreen.WhatisthesmallestnumberofyellowmarblesthatMarcycouldhave?Problem10Aboxcontainsfivecards,numbered1,
9、2,3,4,and5.Threecardsareselectedrandomlywithoutreplacementfromthebox.Whatistheprobabilitythat4isthelargestvalueselected?Problem11Asquare-shapedflooriscoveredwithcongruentsquaretiles.Ifthetotalnumberoftilesthatlieonthetwodiagonalsis37,howmanytilescoverthefloor
10、?Problem12Thesmallestpositiveintegergreaterthan1thatleavesaremainderof1whendividedby4,5,and6liesbetweenwhichofthefollowingpairsofnumbers?Problem13Peter,Emma,andKylerplayedchesswitheachother.Peterwon4gamesandlost2games.Emmawon3gamesandlost3games.IfKylerlost3ga
11、mes,howmanygamesdidhewin?Problem14ChloeandZoearebothstudentsinMs.Demeanor'smathclass.Lastnighttheyeachsolvedhalfoftheproblemsintheirhomeworkassignmentaloneandthensolvedtheotherhalftogethe
