首页
登录
职称英语
The integers x and y are greater than 1. If(4x)(7y)= 756, what is the value of x
The integers x and y are greater than 1. If(4x)(7y)= 756, what is the value of x
游客
2025-02-24
42
管理
问题
The integers x and y are greater than 1. If(4x)(7y)= 756, what is the value of x + y?
x + y =______
选项
答案
12
解析
You can solve the given equation,(4x)(7y)= 756, for the product xy:
(4x)(7y)= 756
28xy=756
xy = 27
By trial and error, you find that 3 and 9 are the only two integers greater than 1 whose product is 27. So x + y = 12, and the correct answer is 12.
This explanation uses the following strategy.
Strategy 10: Trial and Error
转载请注明原文地址:http://tihaiku.com/zcyy/3970095.html
相关试题推荐
Howmanydifferentpositiveintegersarefactorsof342?A、9B、11C、12D、20E、22
Thesquarerootof800isbetweenwhichofthefollowingintegers?A、21and25B、
Ofthefollowing,whichismostnearlyequaltobutnotgreaterthan[img]2011q3
If[img]2011q3/ct_egmatqm_egmatqchoose_0381_201121[/img]forallintegersxand
Ifx,y,andzarepositiveintegers,and4x=5y=6z,thentheleastpossiblevalu
Ifaandbareoddintegers,whichofthefollowingisaneveninteger?A、a(b-4)
Whatisthesmallestpossiblecommonmultipleoftwointegerswhicharebothgre
Themedianoffivedifferentpositiveintegersis12,whichofthefollowingis
IfintegersMandNarepositiveandhavethesamedigits,butinreverseorder,
Howmanyintegersbetween100and150,inclusive,canbeevenlydividedbyneith
随机试题
—Readtheadviceaboutcooperation.—Choosethebestwordtofilleachgap,from
Whenistheguidedtourofthecampusgiven?[br][originaltext]M:I’mherefor
[originaltext]Whydoesthewomanwanttobetransferredtoanotherdepartment?[
索赔是合同管理中经常会碰到的问题,以下关于索赔管理的描述中,()是正确的。
下列超前地质预报的物探方法中可用于长距离预报的是()。A.地质雷达法 B
患者,女,29岁,已婚。因分娩时受寒,产后小腹疼痛,拒按,恶露量少,行而不畅,色
集装箱运输整箱货的装箱与拆箱作业由()负责。A.集装箱中转站 B.海关 C.
粉煤灰路堤的施工步骤与土质路堤施工方法相类似,仅增加了包边土和()等工序。
有关Graves病的病因,叙述正确的是A:与遗传、免疫均有关 B:与遗传有关,
在仲裁程序中,当事人对仲裁协议的效力有异议的,应当在( )提出。2016A、答
最新回复
(
0
)