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1、Agrocertrades162barrelsofflourvaluedat$6.00abarrelfor54barrelsofsugar.Whatisthevalueofabarrelofsugar?2、Rainfallsallnightoveralake.Thetotalrainfallis50literspersquaremeter.Byhowmuchdoesthesurfaceofth
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问题描述:

1、Agrocertrades162barrelsofflourvaluedat$6.00abarrelfor54barrelsofsugar.Whatisthevalueofabarrelofsugar?

2、Rainfallsallnightoveralake.Thetotalrainfallis50literspersquaremeter.Byhowmuchdoesthesurfaceofthelakerise?

3、Startingat5andcountingby7's.Samuelcounts5,12,19,...anumberthatwillbecountedis?

4、Duringasale,thepriceofabookisreducedby25%.Thenewpriceisthenfurtherreducedby40%.Thecostofthebookasapercentageoftheoriginalpriceis?

5Howmanysecondswillittakeforatrain300meterslongtravelingat100km/hrtopassamanjoggingat10km/hrinthesamedirection?

6、Thefaceofacubearemarkedwiththenumbers1,2,3,4,5,6.Eachcornerofthecubeisassigned"vertexnumber"equaltothesumofallthenumbersonthefacesthatmeetatthiscorner.Thesumofallthevertexnumbersis?

7、Steveplantstentreeseverytheeminutes.Ifhecontinuesplantingatthesamerate,howlongwillittakeshimtoplant2500trees?

陈增强回答:
  162*6/54=18$50*10^-3=0.05meter5+7n,n=1,2,3,.(1-25%)(1-40%)=45%0.3*3600/(100-10)=12secondseveryfaceisaddedbyforce,soThesumofallthevertexnumbersis4*(1+2+3+4+5+6)=842500/10*3=750mintes&...
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