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Izindlela eziningana ukubala iphesenti inombolo (futhi uhlobo efanayo umsebenzi)

Ukubalwa iphesenti we inombolo - omunye eqinisweni eliyisisekelo lokuthi zonke ezenzeka esikoleni izifundo mathematics. Kodwa lokhu akusho ukuthi konke kahle kalula. Empeleni, isihloko kuyinto elula, into esemqoka - ukwazi izindlela bokuthi ukubala phezu yingxenye yalo lonke futhi isithakazelo lonke.

1% - ingxenye wokuhamba lonke, ukuze ukwazi lesi silinganiso kalula ukubala inani ingxenye. Ngokwesibonelo, ama-15% 60 ingabalwa kanje: thatha 60 100 amaphesenti. Khona-ke 1% - kuyinto 60/100 - 0.6. 15%, ngaleyo ndlela, bakha - 0.6 * 15 = 9. Lena indlela yokuqala ukubala iphesenti inani.

Indlela yesibili - ukufinyelela ngokulingana. 15 sihlobene 100 njengoba iphathelene X 60, okungukuthi 15/100 = x / 60. Rarulula Ingxenye yakhiwa ngezindlela ezimbili:

  1. Guqula yona isisho sithi x = 15 * 60/100. Nalapha futhi, kuvela: x = 9.
  2. Yenza olunye yokuguqula 2 izinyathelo: 100x = 15 * 60, okungukuthi, e olinganise nande crosswise. Kule nkulumo, sithola lokhu okulandelayo: 100X = 900. Ngakho-ke, x = 9.

Uma ufuna ukuthola ukuthi iphesenti inani enye inombolo, ifomula silula futhi. Thatha isibonelo izinombolo 70 futhi 13. Ake 70 - 100%, futhi 13 - x. Khona-ke 13/70 = x / 100. Xazulula lesi Ingxenye kungenzeka ngezindlela kakade ajwayelekile.

I 70 * 13 = 100; 70s = 1300; Uma ahanjiswa endaweni yesibili idesimali, kuvela ukuthi x = 18,57%.

Uma wazi kumaphesenti athile inombolo bese kudingeka ukuthola inombolo, futhi lokhu inkinga ingaxazululwa ngokuphelele.

Ngokwesibonelo, u-16% - kuyinto 32. Uyini inamba? Nalapha ukuqamba Ingxenye: 16% ahlobene ku-100%, kanye 32 kuya x. 16/100 = 32 / x; 16x = 3200; x = 3200/16 = 200.

Uma isimo wukuthi inkinga inani A iphesenti ezithile isibalo B, okuyilona elidingekayo ukubala isicelo esinye ifomula silula. A / B * 100% - lokhu kuzoba impendulo. Ngokwesibonelo, udinga ukuthola ukuthi yini iphesenti inani 87 inombolo 329.

Ibala nomphumela wefomula, sithola 87/329 * 100% = 26,44%. Uma ifomula ukhohlwe ngesikhathi esifanele, ukusiza uzabuya ngezabelo: 87 libhekisela 329, njengoba x libhekisela 100%, okungukuthi 87/329 = x / 100. Ukuguqula lokhu ingxenye, sithola 329h = 87 * 100; 329h = 8700; x = 8700/329 = 26,44%.

Nokho, olinganise elula cishe zonke njalo indlebe, futhi ikhanda lami: owodwa yesihlanu - 20%, omunye kwabayishumi - 10%, nengxenye lengxenye yesine - 50% no-25% ngokulandelana. Kwamanye, kumane kuyinto imicabango kuwusizo kakhudlwana futhi sicace kaningi, futhi othile kulula usebenza amaphesenti. Umehluko omkhulu phakathi elesibili nokungu-50% kanti akunjalo.

Nge wokubala wenze kuyoba lula, ngoba kukhona inkinobho ekhethekile evumela ukuthi wena ukubala inzalo ngisho.

Yiqiniso, konke lokhu imisebenzi - yokuphepha nje theory. Kodwa ukubala iphesenti inani kungase kudingeke empilweni. On ukudayiswa ukubona ukuthi 30% isaphulelo ukuba siqonde entweni, noma kuba neconsi. Ungathola ukuthi yini kwaba intengo sikuthathe, kanye isikhwama esingumsuka nabathengisi - ngoba ngokuvamile basuke abathengi ongatjhejisisiko futhi iphuzu ngesikhathi inani layo likwenza ubone ukuthi izibalo ekhangayo.

Bala kungadingeka iphesenti inombolo, futhi ukubala intela, yebo, labo ukulandelela izinto ezinjalo. Futhi-ke, ukubala inzalo njalo babhekana ezimali, osomnotho, ngabathengisi bamasheya nabahlaziyi. Eqinisweni, ngisho umama njalo kufanele ubhekane isithakazelo, ngaphandle ngisho nokuqaphela.

Kafushane, isihloko ilula, nakuba kubonakala sengathi kunzima kakhulu efika kuqala. Nokho, uma iza ukuqonda, imisebenzi ephathelene ekubalweni isithakazelo ngenani futhi yonke ingxenye, kubonakale imbewu. Wena nje kufanele ugcwalise futhi isinkwa kancane.

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