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
Suzie’s Discount Footwear sells all pairs of shoes for one price and all pairs of boots for another price. On Monday the store s
Suzie’s Discount Footwear sells all pairs of shoes for one price and all pairs of boots for another price. On Monday the store s
admin
2019-02-01
56
问题
Suzie’s Discount Footwear sells all pairs of shoes for one price and all pairs of boots for another price. On Monday the store sold 22 pairs of shoes and 16 pairs of boots for $650. On Tuesday the store sold 8 pairs of shoes and 32 pairs of boots for $760. How much more do pairs of boots cost than pairs of shoes at Suzie’s Discount Footwear?
选项
A、$2.50
B、$5.00
C、$5.50
D、$7.50
E、$15.00
答案
B
解析
One approach to this question is to set up the two equations and then eliminate one variable to solve for the other. If s represents the prices of shoes and b represents the price of boots, then 22s+16b=650 and 8s+32b=760. To eliminate b, multiply both sides of the first equation by 2 and then subtract the second equation from the modified first equation, and you get 44s-8s+32b-32b=1,300-760; therefore, 36s=540, and shoes cost $15. Plug this value into one of the equations and you get b=$20. $20-$15=$5.
转载请注明原文地址:https://kaotiyun.com/show/dRtO777K
本试题收录于:
GMAT QUANTITATIVE题库GMAT分类
0
GMAT QUANTITATIVE
GMAT
相关试题推荐
Althoughtheyhadaquarreltheotherday,PeterandJimarenowonfriendlyterms______.
Spending50minuteswithacellphoneclosetoyourearisenoughtochangebraincellactivityinthepartofthebrainclosest
Televisionhaschangedthelifestyleofpeopleineveryindustrializedcountryintheworld.IntheUnitedStates,wheresociolo
Itisnecessarythatwe______haveagoodcommandofEnglishatcollege.
Onetypeofpersonthatiscommoninmanycountriesistheonewhoalwaystriestodoaslittleaspossibleandtogetasmuchi
Ireceivedmywagesyesterday.______IcannowpaywhatIoweyou.
Televisionhasopenedwindowsineverybody’slife.Youngmenwillneveragaingotowarastheydidin1914.Millionsofpeople
Although______happenedintheArcticregionsoundslikeafairytale,ittrulyexits.
Afterthenewsystemhassettleddown,peopleinnon-computerjobsarenotalwaysreplacedwhentheyleave,resultinginadecre
随机试题
消防水泵一般多为离心泵,采用()吸水方式。
阅读沈从文《箱子岩》中的一段文字,然后回答以下小题。那一天正是五月十五,河中人过大端阳节。箱子岩洞窟中最美丽的三只龙船,早被乡下人拖出浮在水面上。船只狭而长,船舷描绘有朱红线条,全船坐满了青年桨手,头腰各缠红布。鼓声起处,船便如一支没羽箭,在平静
属于主诉的是属于现病史的是
肺结核合并肺外结核治疗的疗程至少需
下列各选项中,关于留置权的说法错误的是()。
下列石油化工专用设备中,属于分离设备的有()。
下列费用应计入与项目建设有关的专项评价费的有()。
会计学专业包括()。
XYZ会计师事务所承接了乙上市公司2011年度的财务报表审计业务,派出了A注册会计师进入乙股份有限公司进行审计,A注册会计师按资产总额5000万元的2‰计算了资产负债表的重要性水平,按净利润600万元的2%计算了利润表的重要性水平,则其最终应取(
关于西部大开发中引进高管人才问题,你作为组织部的一名成员怎么去负责实施这件事?
最新回复
(
0
)