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TGAU Mathemateg Datrys Problemau Rhif Haen Uwch

TGAU Mathemateg Datrys Problemau Rhif Haen Uwch. Buddsoddodd Seimon mewn cyfrif a gynyddodd 3.5% bob blwyddyn am 4 b lynedd . Ar ddiwedd y cyfnod hwnnw roedd £9753.95 yn y cyfrif . Faint oedd buddsoddiad gwreiddiol Seimon ?.

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TGAU Mathemateg Datrys Problemau Rhif Haen Uwch

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  1. TGAU Mathemateg DatrysProblemau Rhif HaenUwch

  2. BuddsoddoddSeimonmewncyfrif a gynyddodd 3.5% bob blwyddyn am 4 blynedd. Arddiwedd y cyfnodhwnnwroedd £9753.95 yn y cyfrif. Faint oeddbuddsoddiadgwreiddiolSeimon? • Ystyriwchsutmaeadloga'rcyfanswmterfynolyncaeleigyfrifo. • Cyfanswmterfynol = Buddsoddiadgwreiddiol x (1 + cyfraddllog) niferyblynyddoedd • Amnewidiwch y gwerthoeddsyddwedieurhoiyn y cwestiwnimewni'rfformiwla • £9753.95 = Buddsoddiadgwreiddiol x ( 1 + 0.035)4 • £9753.95 = Buddsoddiadgwreiddiol x ( 1.035)4

  3. Aildrefnwch yr hafaliadiwneud 'y buddsoddiadgwreiddiol' yndestun y fformiwla. • £9753.95 = Buddsoddiadgwreiddiol x ( 1.035)4 • ( 1.035)4 ( 1.035)4 • £9753.95 = Buddsoddiadgwreiddiol • ( 1.035)4 • £8500 = Buddsoddiadgwreiddiol

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