首页
登录
职称英语
When the average of a list of course grades is multiplied by the number of cours
When the average of a list of course grades is multiplied by the number of cours
游客
2024-01-12
5
管理
问题
When the average of a list of course grades is multiplied by the number of courses, the result is n. What does n represent?
选项
A、Half the number of courses
B、Half the sum of course grades
C、The number of courses
D、The average of the course grades
E、The sum of the course grades
答案
E
解析
The correct answer is E. You are given that the product of the average of a list of course grades and the total number of courses is n. Recall that average, A, is equal to the sum of the course grades, G, divided by the number of courses, C; thus A = G/C. Because n is the product of the number of courses, C, and the average of the course grades, A, n=AC. Further, because A = G/C, multiplying both sides by C yields G=AC. Finally because n=AC and G=AC, it follows that n = G. Thus n is the sum of the course grades.
转载请注明原文地址:https://tihaiku.com/zcyy/3355957.html
相关试题推荐
这种疾病困扰着大多数以米饭为主食的东方人。ItdistressedlargenumbersofEasternpeoplewholivedmai
Hewasveryrudetothecustomsofficer,______ofcoursemadethingsevenworse
Thenumberofmembersintheclub________totwohundred.A、werelimitedB、limits
Agoodtitleforthispassageis______.[br]Theaveragenumberofhoursofsle
Whatyou’realwaysheard?We’reeatingtoomuchsalt.TheaverageAmericange
Whatyou’realwaysheard?We’reeatingtoomuchsalt.TheaverageAmericange
Whatyou’realwaysheard?We’reeatingtoomuchsalt.TheaverageAmericange
Theunderlinedword"average"inParagraph1means______.[br]Wecaninferfro
Theunderlinedword"average"inParagraph1means______.[br]Thereasonwhyh
Scientistsfindthathard-workingpeoplelivelongerthanaveragemenandwo
随机试题
Onlywhenitiscorrectineverydetail______.A、hismodelcanreallyrunB、can
Losingajobornotbeingabletofindonealmostalwaysbringsunwelcomech
Theconceptofobtainingfreshwaterfromicebergsthataretowedtopopulat
[originaltext]Sayyougetintobed,preparedforahealthysevenoreighth
Corporationsasagroupofferavarietyofjobs.Mostlargecompaniessendp
演出安全包括涉及国家安全、生态安全以及社会经济管理安全等所有可能的演出事故。(
某股权投资基金A于2011年7月投资了B公司,投资协议中包含保密条款且保密期限为
锅炉容器内焊接时,照明使用的电源电压不大于()V。A、12 B、24 C、3
素质教育强调“选择适合儿童的教育,而不是挑选适合教育的儿童”。这说明素质教育(
高血压病可引起的脑内病变有( )。A.脑水肿 B.脑梗死 C.脑出血 D
最新回复
(
0
)