The integers x and y are greater than 1. If(4x)(7y)= 756, what is the value of x

游客2025-02-24 27

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:https://www.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

ThegeologyoftheEarth’ssurfaceisdominatedbytheparticularproperties
[img]2022m3x/ct_ve01202001m_eillist_0711_220329[/img][br][originaltext](Sales
[originaltext]SightSightisverye
Lowlevelsofliteracyandnumeracyhaveadamagingimpactonalmosteverya
[originaltext]M:Mary,whyisn’tJaneteachingherethisterm?W:Shecan’t.Sh
[originaltext]W:Dr.Jones,howexactlywouldyoudefineeccentricity?M:Well,
[originaltext]Mosttypesofcancercanbeputdowntobadluckratherthan
Inthe1980s,homeschoolingmadeacomebackintheU.S.whenreligiouslycon
肾性水肿易出现于A:眼睑、颜面 B:胸腔、腹腔 C:胫前、足踝 D:背部、
（2019年真题）患者，女，27岁，确诊慢性乙型肝炎3年，近日化验结果:HBV-

最新回复(0)

The integers x and y are greater than 1. If(4x)(7y)= 756, what is the value of x

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

ThegeologyoftheEarth’ssurfaceisdominatedbytheparticularproperties

[img]2022m3x/ct_ve01202001m_eillist_0711_220329[/img][br][originaltext](Sales

[originaltext]SightSightisverye

Lowlevelsofliteracyandnumeracyhaveadamagingimpactonalmosteverya

[originaltext]M:Mary,whyisn’tJaneteachingherethisterm?W:Shecan’t.Sh

[originaltext]W:Dr.Jones,howexactlywouldyoudefineeccentricity?M:Well,

[originaltext]Mosttypesofcancercanbeputdowntobadluckratherthan

Inthe1980s,homeschoolingmadeacomebackintheU.S.whenreligiouslycon

肾性水肿易出现于A:眼睑、颜面 B:胸腔、腹腔 C:胫前、足踝 D:背部、

（2019年真题）患者，女，27岁，确诊慢性乙型肝炎3年，近日化验结果:HBV-