Imathematika School. Indlela yokufumana ipesenti inani

Igama elithi "inzala" ngesiGrike libhekisela omnye isahlulo sekhulu inani. Kwimathematika, yaye ehlabathini, loo nto ithathwa ukuba eliphelele 100%. Ngokusekelwe kulo mgaqo, wakha yonke imithetho ikhompyutha.

Kukho iinketho eziliqela kwimisebenzi enxulumene injongo ukubala ipesenti inani. msebenzi nganye enjalo iye izisombululo ingqiqo ngamnye walo.

Fumana ipesenti inani

Ingxelo ingxaki kunikwa ixabiso ethile lenani iyafuneka ukufumana ipesenteji yayo. Ngokomzekelo, siye sibe inani 47, kwaye kuyimfuneko ukuba ukubala-25%.

Isisombululo: Ukuze zokusombulula inani lokuqala siyakwamkela 100%. Emva koko, le pesenti ukuba iguqulelwe ngeshumi kwaye bamkele-25% = 0.25. 47 iyanda yi ipesenti ochazwa shot kwaye ufumane inombolo oyifunayo 47 * 0.25 = 11.75.

A: 11,75 yi-25% yenani 47.

Fumana inani ipesenti

Olunye uhlobo yeengxaki ezinxulumene nomba yokufumana indlela ipesenti inani kubalo yexabiso kokuba ekhulwini. Njengoko 57 yi-45% yenani elithile. Kufuneka ukufumana inani.

Isisombululo: Ukuze bacombulule le ngxaki, kufuneka ukuba ayahlule nani elifumanekayo ngokwepesenti ukuba ivela lonke. Ngaloo ndlela, sifumanisa ukuba-57 / 126.67 = 0.45. Ukuba ngcono ukuqonda eli nyathelo liya kuba aphume indawo ukuze wonke inkqubo ngokweenkcukacha. 57 - 45% kuyo, ngamanye amazwi ukufumana ixabiso ekhulwini mnye, inani kufuneka lahlulwe isixa umdla. Kubonakala ukuba-1% of yonke inani ilingana 1,2667. Okulandelayo, ixabiso ukufumana lonke, siya kubangela yande ngama-100.

Impendulo: Inani, 45% yayo ngu 57, ilingana 126,67.

Fumana into ipesenti inani omnye elomnye

Kancinci nzima bangenise imisebenzi ekufuneka ukufumana ixabiso ipesenti oko kukuthi inani elinye ukusuka komnye. Indlela ukufumana ipesenti inani kule meko? Impendulo ilula kakhulu. Cinga nje ngomzekelo elula ngayo. Thina amanani amabini: Masithi ukuba lo 45 no 58. Ukuze ufumanise ukuba yeyiphi na ipesenti yi 45 eyimfuneko 58 ukuba uphinda-phinde ngo-100 kwaye salhule ngo 58. Sifumanisa ukuba yi-45 - ke 77,6% ye-58.

Uyakwazi kuvamile ukubona meko apho abantu baqonde musa ukutshintsha njani ixabiso lemveliso, ukuba zinyuke nge-15%. Abantu uzilibale nemathematika kwisikolo samabanga aphantsi kwaye ngenxa yesi sizathu ukuba bamangalisiwe ukufumana indlela ipesenti inani.

izithuba ngakumbi kubaluleke ngamnye ulwazi ekhulwini endle konxibelelwano kunye nemisebenzi exchange. Ngokwenza iidipozithi kwi -akhawunti yebhanki, nathi ejongene nayo ngomdla. Kukho umgaqo ekhulwini okudadayo okanye capitalisation, nzima kancinci umgaqo ikhompyutha ngesiphumo sokugqibela.

Njengoko ubona, kunye uphindaphindo encinane, unako lula ukukhumbula okanye re-ukufunda ukufumana indlela ipesenti inani, kwaye ngokubanzi, ukuba asebenze njani na unit zemathematika ngokwezimali. Olu lwazi luya nje ukwandisa umbono abantu ngokubanzi, kodwa kuya kunceda ukugxila nentembelo ngakumbi kwiimeko kunye notshintsho kwamaxabiso, amazinga exchange, inzala ebhankini, imida ngeniso kunye nezinye iinkqubo ebalulekileyo kakhulu. Kakade ke, xa efika kuqala kubonakala ukuba ukukwazi ukubala engqondweni yakhe kungonga imizuzwana embalwa, kodwa ukuphumelela umzuzu ekuthatheni isigqibo kungabangela imihla bakhululekileyo ngakumbi ngonyaka ngamnye.