Kathy was twice as old as Jim 2 years ago. Today, Jim is j years old. In terms of j, how old was Kathy 2 years ago? ______2(j

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问题 Kathy was twice as old as Jim 2 years ago. Today, Jim is j years old. In terms of j, how old was Kathy 2 years ago?
______2(j-2)
______2j-2
______2(j+2)
______j(2+2)

选项

答案 You are given that Jim is j years old today; therefore, 2 years ago Jim would have been j-2 years old. At that time, Kathy was twice as old as Jim, or 2(j-2).

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Kathy was twice as old as Jim 2 years ago. Today, Jim is j years old. In terms of j, how old was Kathy 2 years ago? ______2(j

GRE QUANTITATIVE

GRE

Alawyerfriendofminehasdevotedherselftotheserviceofhumanity.Herspecialareaiscalled"publicinterestlaw".Ma

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Itwasnotmuchfuntotravelononeoftheoldsailingships.Lifewashardforbothpassengersandcrew.17thcenturysailing

Dina:Youlookrun-down,Brian.Brian:Yeah.I’vebeenfeelingundertheweatherrecently.【D8】______andIstillhaven’tgotten

Studythefollowingcartooncarefullyandwriteanessayonit.Inyouressay,youshould(1)describethecartoonbriefly:(2)a

Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingatermcalledcarbon"footprint."Thatfootprintrefle

Allthefollowingcasesareon-the-jobsmokingexceptthat______.Inthesecondpartofthepassage,theauthorsuggestsbannin

Scientistsmeasuredtheimpactthatpeoplehaveontheenviromentusingatermcalledcarbon"footprint".Thatfootprintreflect

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