首页
登录
职称英语
If the temperature decreases 30 percent from m degrees to 49 degrees, then m-49=
If the temperature decreases 30 percent from m degrees to 49 degrees, then m-49=
游客
2025-02-27
47
管理
问题
If the temperature decreases 30 percent from m degrees to 49 degrees, then m-49=?
选项
A、21
B、75
C、63.7
D、68
E、90
答案
A
解析
此题考查百分比上升或下降中谁是分母。温度从m度降到49度,下降了30%,那么(m-49)/m=30%。得到m=70,因此m-49=21。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3974786.html
相关试题推荐
StateXhasasalestaxrateofkpercentonallpurchasesandStateYhasasal
TownXhas50,000residents,someofwhomwereborninTownX.Whatpercentoft
StoreNgivesa50percentdiscountonthelistpriceofallitsitemsandStore
[img]2022m10x/ct_ve01204002j_0037_221018[/img]Thetableaboveshowsthepercent
3×104isgreaterthan4×103bywhatpercent?A、[img]2022m10x/ct_ve01203002j_egreq
Inthetwodecadesbetween1910and1930,overtenpercenttotheBlackpopulati
Inthetwodecadesbetween1910and1930,overtenpercenttotheBlackpopu
Inthetwodecadesbetween1910and1930,overtenpercenttotheBlackpopu
Inthetwodecadesbetween1910and1930,overtenpercenttotheBlackpopu
Anthony:Ithasbeenestablishedthatover80percentofthosewhouseheroinha
随机试题
继续教育(continuingeducation)是面向学校教育之后所有社会成员特别是成人的教育活动。随着终身教育思想已经为越来越多的人所接受,人们越来
HowDiversityTrainingInfuriatesMenandFails
Kolb’sLearningStylesPsychologistDavidKolbp
Concernsafewyearsagothatstudentswouldbeforcedtousestimulantsin
Thewaythatpeoplespendtheirmoney,andtheobjectsonwhichtheyspendi
计算机软件只要开发完成就能取得()受到法律保护。A.软件著作权 B.专利权
计算机网络的拓扑结构主要取决于它的()A.路由器 B.资源子网 C.通信
女性,35岁,既往风湿性关节炎病史10年,劳累后心悸气促4年,近来加重,夜间不能
Thechangeinthatvillagewasmiraculou
男性,45岁,有慢性乙型病毒性肝炎病史多年,因肝区疼痛1周来就诊,体格检查肝大,
最新回复
(
0
)