Safundiswa ukuthola iphesenti lenombolo esikoleni, kodwa ngokuhamba kwesikhathi, abantu abadala abaningi banekhono elibalulekile. Noma kunjalo, lapho uzama ukubala usayizi wesaphulelo esitolo noma unqume inani lemali edinga ukuhlehliswa njalo ngenyanga ukuze iqonge iphupho leholide, uzodinga ifomula efanele lezibalo.
"Thatha futhi wenze" uzokukhombisa izindlela eziningana zokubala amaphesenti enani elingasetshenziswa ezimweni ezihlukile.
1. Ungathola kanjani iphesenti le
Umthethosisekelo oyisisekelo
Uma ufuna ukubala iphesenti lanoma iyiphi inombolo, kufanele usebenzise ifomula P% * X = y, lapho:
- I-P% ngamaphesenti;
- X - Inombolo;
- Y - Impendulo yokugcina.
Isibonelo, udinga ukubala imali engakanani oyosindisa, ukuthenga i-smartphone, ebiza u- $ 250, ngesaphulelo esingu-20%.
- Kulokhu, i-equation izoba ngale ndlela elandelayo: 20% * 250 = y.
- Ukukhiqiza ukubala kwezibalo, udinga ukuguqula ama-20% engxenyeni yedesimali. Vele uhlukanise inombolo 100 bese ususa uphawu lwamaphesenti.
- Shintsha i-equation: 0.2 * 250 = y.
- Ibala: 0.2 * 250 = 50. Phendula: y = 50.
Ukuthenga i-smartphone enesaphulelo esingu-20%, uzosindisa u- $ 50.
Enye indlela
Kunenye indlela ukubala iphesenti elingasiza lapho ungenalo umshini wokubala osusondele, kepha bekungelula ukuxazulula i-equation engqondweni. Ake sithi uphinde udinge ukuthola ukuthi iyiphi imali engama-20% ka-250.
- Ukuze wenze lokhu, ungaphindaphinda izinombolo, uphonsa ama-zeros: 2 * 25 = 50.
- Ngemuva kwalokho udinga ukuqonda ukuthi yini okufanele uyenze ngama-zeros ongakaze ucabangele lapho uphinda izinombolo. Ngakho-ke, ukuphendula kungaba ngama-50; 0.5 noma 500.
- Ezinombolo ezi-2 zokugcina, enye incane kakhulu, enye inkulu kakhulu uma uyiqhathanisa no-250. Akunakwenzeka ukuthi u-0,5 no-500 angama-20% angama-250. Ngakho-ke, impendulo eyiyo: 50.
Uma ubhekene nezinombolo eziyinkimbinkimbi, ungashintsha le ndlela kancane. Ake sithi udinga ukubala ama-34% angama-45.
- Spread 34% ngo-30% no-4%.
- I-equation itholakala kulokho: (30% + 4%) * 45.
- Cabanga ngalokhu: (30% + 4%) * 45 = 13.5 + 1.8 = 15.3.
Impendulo: 15.3. Esinye isibonelo kubalwa ama-40% ka-154.
- Qala ngokubola ngo-154 ku-150 no-4.
- Ngakho-ke, i-equation izoba ngale ndlela elandelayo: 40% * (150 + 4).
- Ibala: 40% * (150 + 4) = 60 + 1,6 = 61.6.
Impendulo: 61.6.
2. Indlela Yokubala Amaphesenti Amaphesenti Amaphesenti Athile Avela Kuningi
Uma udinga ukubala, amaphesenti amangaki inani elithile elivela enanini elikhudlwana, udinga ukusebenzisa ifomula ye-Y / X = P% ifomula. Isibonelo, ake sithi ngosuku lokuzalwa lwe- $ 80 elethulwe kuwe ngosuku lokuzalwa lwama- $ 80 futhi manje ufuna ukubala ukuthi amaphesenti amaphesenti amaningi osuvele achithe.
- Kulokhu, y = 20, x = 80.
- I-equation itholakala kanjena: 20/80 = P%.
- Bala: 20/80 = 0.25.
- Ngemuva kwalokho udinga ukuguqula ingxenyenamba yedesimali ngenzalo. Ukuze wenze lokhu, phindaphinda inombolo ephumayo nge-100.
- Ngakho-ke, 0.25 * 100 = 25%. Impendulo: 25%.
Ngakho-ke uchithe ama-25% ama- $ 80 anikelwe.
3. Ungayinquma kanjani inombolo uma wazi ukuthi yini elingana nephesenti layo
Uma udinga ukubala inani, ucubungula ukuthi uyazi ukuthi yini elilingana nephesenti lawo, udinga ukusebenzisa i-Y / P% formula = X. Isibonelo, ubona ukuthi kuzogcina isikhangiso lapho uzogcina khona u- $ 40, lokho , ama-20% wezindleko eziphelele zohambo lwempelasonto, uma ubhuka khona manjalo. Unesifiso sokufunda izindleko zohambo. Njengoba isimemezelo singasho lutho ngalokhu, unquma ukubala ngokwakho.
- Kulokhu, y = 40, P% = 20%, futhi u-X akaziwa.
- I-equation itholakala kanjena: 40/20% = X.
- Guqula i-20% engxenyeni yedesimali: 20/100 = 0.2.
- I-equation izoba kanjena: 40 / 0.2 = X.
- Cabanga: 40 / 0,2 = 200. Phendula: 200.
Izindleko eziphelele zohambo zingama- $ 200.