If= 1, which of the following statements describes d in terms of n ?

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问题 If

= 1, which of the following statements describes d in terms of n ?

选项 A、d is 4 less than n.
B、d is 4 more than n.
C、d is 3/7 of n.
D、d is 2 times n.
E、d is 5 times n.

答案E

解析 To describe d in terms of n, you need to solve the equation

= 1 for d. To simplify the equation, you can begin by multiplying both sides by 7n - d and then proceed as follows.

d - 3n = 7n — d
d=10n-d
2d= 10n
d = 5n
The correct answer is Choice E.

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本试题收录于： GRE QUANTITATIVE题库GRE分类

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If= 1, which of the following statements describes d in terms of n ?

GRE QUANTITATIVE

GRE

Coralsareparticularlysensitivetochangesintemperature.

Somepeoplethinkoflifeasagame.Therearesimilaritiesbetweenlifeandgames;bothcanbeplayed,bothhaverules,andbot

Conversationbeginsalmostthemomentwecomeintocontactwithanotherandcontinuesthroughouttheday【B1】______theaidof

Thewholeindustrialprocesswhichmakesmanyofthegoodsandmachinesweneedanduseinourdailylife,isboundtocreatea

Agoodtitleforthispassageis.Theaveragenumberofhoursofsleepthatanadultneedsis.

Accordingtothepassage,nonverbalcommunication.Constantsmilingwithoutapparentreason.

Whatisthemostimportantfunctionoftrees?Itisimpliedinthepassagethatthevillagers

Jim’sjobistokeephisboss______ofthelatestdevelopmentofthatproductinEurope.

Bigdatacanbedefinedasinformationthatistoobigorcomplextobecontainedorprocessedbyanyonemachineorperson.

Evaluatethefollowing.(a)15-(6-4)(-2)(b)(2-17)÷5(c)(60÷12)-(-7+4)(d)(3)4-(-2)3(e)(-5)(-3)-15(f)(-2)4(15-18)4(g)(20÷5)2

出皈物消费者的不同层次是指不同的()。

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Coralsareparticularlysensitivetochangesintemperature.

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Agoodtitleforthispassageis______.Theaveragenumberofhoursofsleepthatanadultneedsis______.

Accordingtothepassage,nonverbalcommunication______.Constantsmilingwithoutapparentreason______.

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Jim’sjobistokeephisboss______ofthelatestdevelopmentofthatproductinEurope.

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A、Shehasn’tfinishedreadingthebook.B、Shewon’tlendherbooktotheman.C、Themandoesn’tneedthebook.D、Themancanuse

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