首页
登录
职称英语
On the day of the performance of a certain play, each ticket that regularly sell
On the day of the performance of a certain play, each ticket that regularly sell
游客
2025-02-27
34
管理
问题
On the day of the performance of a certain play, each ticket that regularly sells for less than $10. 00 is sold for half price plus $0. 50, and each ticket that regularly sells for $10. 00 or more is sold for half price plus $1. 00. On the day of the performance, a person purchases a total of y tickets, of which x regularly sell for $9. 00 each and the rest regularly sell for $12. 00 each. What is the amount paid, in dollars, for the y tickets?
选项
A、7y-2x
B、12x-7y
C、
D、7y + 4x
E、7y+5x
答案
A
解析
The amount paid for the y tickets is the sum of the amounts paid for two groups of tickets, The first group consists of x tickets, each of which regularly sells for $9.00. The second group consists of the remaining (y - x) tickets, each of which regularly sells for $12.00. The amount paid for the first group was x($4.50 + $0.50) = $5x. The amount paid for the second group was (y - x)($6.00 + $1.00) = $7(y - x), or $7y - $7x. Therefore, the amount paid for the y tickets was $5x + ($7y - $7x) = $(7y - 2x).
The correct answer is A.
转载请注明原文地址:https://tihaiku.com/zcyy/3974722.html
相关试题推荐
Therewere36,000hardbackcopiesofacertainnovelsoldbeforethepaperbackv
[img]2022m10x/ct_ve01204002j_0009_221018[/img]Acertainmanufacturerusesthef
Inacertaingroupofpeople,theaverage(arithmeticmean)weightofthemales
Acertainbrandofhousepaintmustbepurchasedeitherinquartsat$12eachor
Acertaintrucktravelingat55milesperhourgets4.5milespergallonofdies
Onacertainnumberline,if8isdistanceof18fromn,and17ishedistanceo
Acertainmathematicaloperationmayberepresentedbythesymbol@.Forallnonz
Inacertainbox,thereare3timesasmanyredballsasblueballs.Whichofth
Howmanyhourswerebudgetedforacertainjob?(1)Thenumberofhoursbudgeted
Thereare120employeesinacertaincompany.If36oftheemployeesareinthe
随机试题
(1)Ifyou’relikemostpeople,you’rewaytoosmartforadvertising.Youfli
______socialtieshelpbuildcommunitiesandprotectindividualsagainststress
血友病性关节炎最常见缺乏的凝血因子是()。A.Ⅴ因子 B.Ⅶ因子 C.Ⅷ因
某建设公司于2015年2月份召开了公司职工代表大会,在大会上企业董事长张某对公司
某公司在计划实施一项用于公司内部的办公室自动化系统项目,由于该系统的实施涉及到公
后牙为远中错,前牙深覆盖,其矫治原则为A.缩小牙弓或结合修复治疗 B.矫正颌间
Thechangeinthatvillagewasmiraculou
党的十八大以来,反腐败与改作风________、既________毒瘤更净化生态
肝硬化腹腔积液患者进水量应限制在每天A.500ml左右 B.750ml左右
在交货期内,如果对存货的需求量很大,或交货时间由于某种原因被延误,企业可能发生缺
最新回复
(
0
)