首页
登录
职称英语
Each year, the members of a book club select novels and nonfiction books to read
Each year, the members of a book club select novels and nonfiction books to read
游客
2025-02-24
12
管理
问题
Each year, the members of a book club select novels and nonfiction books to read. The club meets 3 times to discuss each novel and 5 times to discuss each nonfiction book they select. Last year, the club met 52 times and discussed 12 books. How many novels did the club discuss last year?
选项
A、2
B、4
C、5
D、7
E、14
答案
B
解析
Let n represent the number of novels the club discussed last year. Since the club discussed a total of 12 books, the number of nonfiction books is represented by 12 - n. This, together with the information that the club met 3 times to discuss each novel and 5 times to discuss each nonfiction book, tells you that the number of times the club met last year can be expressed as 3n + 5(12 - n). Since you know that the club met 52 times last year, it follows that 3n + 5(12 - n)= 52. This equation can be solved for n as follows.
3n+5(l2-n)= 52
3n+60-5n = 52
8 = 2n
4 = n
Thus the club discussed 4 novels. The correct answer is Choice B.
This explanation uses the following strategies.
Strategy 1: Translate from Words to an Arithmetic or Algebraic Representation
Strategy 5: Simplify an Arithmetic or Algebraic Representation
Strategy 8: Search for a Mathematical Relationship
转载请注明原文地址:https://tihaiku.com/zcyy/3970261.html
相关试题推荐
Eachyear,themembersofabookclubselectnovelsandnonfictionbookstoread
Twodifferentpositiveintegersxandyareselectedfromtheoddintegersthat
Ifanintegerisrandomlyselectedfromallpositive2-digitintegers,whatist
Ifanintegerisrandomlyselectedfromallpositive2-digitintegers,whatist
Supposeyouwanttoselecta3-personcommitteefromagroupof9students.How
Thetennisclubisabouttoholdatennistourmentamongitsmembers.Thereare
Supposexandyareselectedrandomlyfromtheset{1,2,3,4,5}andtheycan
Fourdifferentpersonswillbeselectedfrom2menand5womentoserveonacom
Therecreationdirectoratalocalyouthclubsurveyedthememberstodetermine
Sixdifferentnumbersaretobeselectedfromthe(0,1,2,3,4,5,6)tocompos
随机试题
[audioFiles]audio_etoefz_049(20051)[/audioFiles]A、Sheshouldhaveaskedtobee
某基坑工程,地下水位低于开挖底面无需降水,基坑工程监测范围根据()等综合确
在制备石灰稳定土无侧限抗压强度试件时,要向土中加水拌和浸润,加水量应满足(
新坪村地处城乡结合部,18周岁以上的村民有720人,240户家庭,村民代表共24
关键绩效指标体系的设计包括( )。A.战略地图 B.任务分工矩阵 C.目标
男,51岁,近3年来出现关节炎症状和尿路结石,进食肉类食物时病情加重。该患者发生
个人住房贷款可实行的担保方式是()。A.抵押、信用、质押 B.抵押、信用
依据我国著作权法,表演者享有的权利中不包括()A.表明表演者身份的权利.
A.花蕾期 B.落果期 C.霜降期 D.7月至9月 E.全年均可松萝的适
慢性支气管炎病人的自主神经功能失调表现为A.副交感神经功能亢进 B.交感神经功
最新回复
(
0
)