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
28
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
Accordingtothereport,thecontestwilllast______days.[originaltext]SIN
WhyisRachelcomingtoseeDr.Jones?[br][originaltext]M:Comein.Ah,good
[originaltext]Wethinkofaerobicsasbeingahighimpactactivitybutactu
下列哪个选项是指对活动结果的兴趣?()A.物质兴趣 B.精神兴趣 C.直接
国家质量监督检验检疫部门负责设备工程监理活动的管理,其主要职责包括()。A.
以下属于投标单位计算标价主要依据的有()。A.招标文件 B.施工图纸和工程量
A、18.0kPa B、10.8kPa C、12.0kPa D、
有关αl-微球蛋白的叙述,正确的是( )。A.无糖基 B.尿中稳定性LL13
BB。观察元素个数,各图中包含的黑色方块的数量均为偶数,B项正确。
计算机系统接地线截面的选择(采用绝缘锎绞线或电缆为接地线)。 机柜间链式接地
最新回复
(
0
)