首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Compare Quantity A and Quantity B, using additional information centered above the two quantities if such information is given,
Compare Quantity A and Quantity B, using additional information centered above the two quantities if such information is given,
admin
2017-10-16
46
问题
Compare Quantity A and Quantity B, using additional information centered above the two quantities if such information is given, and select one of the following four answer choices:
(A)Quantity A is greater.
(B)Quantity B is greater.
(C)The two quantities are equal.
(D)The relationship cannot be determined from the information given.
A symbol that appears more than once in a question has the same meaning throughout the question.
选项
答案
B
解析
The given equation(4x - 2y)(6x + 3y)= 18 can be simplified as follows.
Step 1: Note that(4x - 2y)= 2(2x- y)and(6x + 3y)= 3(2x + y), so the given equation can be rewritten as(2)(2x - y)(3)(2x+y)= 18.
Step 2: Dividing both sides of the rewritten equation by 6 gives(2x - y)(2x + y)= 3.
Step 3: Multiplying out the left side of the equation in Step 2 gives 4x
2
-y
2
= 3.
Since Quantity A is 4x
2
-y
2
, it follows that Quantity A is equal to 3. Since Quantity B is 6, the correct answer is Choice B.
This explanation uses the following strategy.
Strategy 8: Search for a Mathematical Relationship
转载请注明原文地址:https://kaotiyun.com/show/arkO777K
本试题收录于:
GRE QUANTITATIVE题库GRE分类
0
GRE QUANTITATIVE
GRE
相关试题推荐
Thesuddenchangeofweathermadethetemperature______alot.
Ourpreferencesforcertaincolorsare______accordingtothepassage.Whichofthefollowingcouldbethemostsuitabletitle
IwastalkingwithaseniorPublicRelationsmanagertheotherdayaboutTheGameTrainersandheexpressedmuchdoubtaboutbot
IwastalkingwithaseniorPublicRelationsmanagertheotherdayaboutTheGameTrainersandheexpressedmuchdoubtaboutbot
Accordingtothepassage,nonverbalcommunication______.Constantsmilingwithoutapparentreason______.
I’dappreciate______ifyouwouldliketoteachmehowtousethecomputer.
Technologicalimprovementsandreducedequipmentcostshavemadeconvertingsolarenergydirectlyintoelectricityfarmorecost
Incold-waterhabitats,certaininvertebratesandfishconvertstarchesintocomplexcarbohydrates,calledglycerols,ineffect
Becauseshewasasuccessfulentrepreneurwhodonatedlargeamountsofmoneytocharitablecauses,MadameC.J.Walkerisrememb
Yourcompanyisorganisingalanguagestudyprogram,andallparticipantsshouldgooverseastoreceivetraining.Writealetter
随机试题
患者5岁,因水肿、血尿5天入院。2天来食欲低下,伴呕吐5~6次,腹泻2次,尿量少,每日100~500ml,尿蛋白(+),RBC满视野,血压20/12kPa,心肺无异常。此患儿24小时进入液体量的计算
患者,男,52岁。右上腹疼痛2个月,右胁胀满,胁下癥块触痛,烦躁易恐,恶心纳呆,面色微黄不荣,舌暗有瘀斑,苔薄白,脉弦涩。实验室检查:甲胎球蛋白510ng/ml,B型超声波示右肝叶占位性病变,直径5cm,其证型是
(2007年)图5—7所示刚梁AB由杆1和杆2支承。已知两杆的材料相同,长度不等,横截面面积分别为A1和A2,若荷载P使刚梁平行下移,则其横截面面积()。
( )科目是固定资产科目的备抵科目。
你知道进外交部后会从事哪些工作吗?
儿章在多少岁时已经能主动提供帮助,用语言表达同情、请成人帮助、力图引起他人情绪变化、用替代性活动安慰对方?()
设f(x)二阶连续可导且满足f"(x)+f’2(x)-2x,且f’(0)=0,则().
下图是校园网某台主机在命令行模式执行某个命令时用sniffer捕获的数据包。请根据图中信息回答下列问题。(1)该主机上执行的命令是【16】。(2)图中的①~⑥删除了部分显示信息,其中③处应该是【17】,④处的应该是【18】,⑤处的应该是【19】。
Ofwhathistoricandcontemporaryconcernisitthatthearchitectureprofessionhasbeen,andcontinuestobe,stronglymaledo
There’snoquestionthattheEarthisgettinghotter.Therealquestionsare:Howmuchofthewarmingisourfault,andarewe【C
最新回复
(
0
)