Kodi mungapange bwanji chiwerengerocho? Mwana aliyense wa sukulu ndi wamkulu angamvetse

Pofuna kuthana ndi mavuto ambiri pamasukulu a kusekondale, chidziwitso chofanana ndi chiwerengero ndi chofunikira. Luso losavuta lidzakuthandizira osati kuchita kokha zochitika zovuta kuchokera m'bukuli, komanso kuti mudziwe zambiri za sayansi ya masamu. Kodi mungapange bwanji chiwerengerocho? Tsopano ife tidzasokoneza.

Chitsanzo chosavuta ndi vuto pamene magawo atatu amadziwika, ndipo chachinayi chiyenera kupezeka. Zomwe zilili, ndizosiyana, koma nthawi zambiri zimafunika kupeza ndi chidwi chiwerengero. Mwachitsanzo, mnyamatayo anali ndi maapulo khumi. Anapatsa gawo lachinayi kwa amayi ake. Mnyamatayo wasiya maapulo angati? Ichi ndi chitsanzo chosavuta, chomwe chidzapanga chiwerengerocho. Chinthu chachikulu ndicho kuchita izo. Poyamba panali maapulo khumi. Lolani kukhala 100%. Tinalemba maapulo ake onse. Iye anapereka gawo limodzi. 1/4 = 25/100. Kotero, iye anali: 100% (anali pachiyambi) - 25% (iye anapereka) = 75%. Chiwerengerochi chikuwonetsera chiwerengero cha kuchuluka kwa zipatso zomwe zatsala ku chiwerengero cha zomwe zilipo poyamba. Tsopano tili ndi nambala zitatu zomwe zatha kale kuthetsa chiwerengerocho. Maapulo 10 - 100%, x maapulo - 75%, pamene x - kuchuluka kwa zipatso. Kodi mungapange bwanji chiwerengerocho? Ndikofunika kumvetsa chomwe chiri. Masamu, amawoneka ngati awa. Chizindikirocho chimaperekanso chimodzimodzi kumvetsa kwako.

Maapulo 10 = 100%;

Maapulo a X = 75%.

Zimapezeka kuti 10 / x = 100% / 75. Ichi ndi chinthu chofunikira kwambiri. Pambuyo pa zonse, ndichulukanso x, peresenti yochuluka iyi nambalayi imachokera pachiyambi. Sungani izi ndi kupeza x = 7.5 maapulo. Chifukwa chake mnyamatayo anaganiza zopereka ndalama zopanda malire, sitidziwa. Tsopano inu mukudziwa momwe mungapangire chiwerengerocho. Chinthu chachikulu ndicho kupeza maubwenzi awiri, mwa umodzi mwa iwo osadziwika osadziwika.

Yankho la chiwerengero nthawi zambiri limafika pakuwonjezeka kophweka, ndiyeno kugawa. Mu sukulu, ana sanena chifukwa chake izi zili choncho. Ngakhale kuli kofunikira kumvetsetsa kuti maubwenzi osiyana ndi a masamu a masamu, ndizofunikira kwambiri za sayansi. Pofuna kuthetsa kukula kwake muyenera kuthana ndi tizigawo ting'onoting'ono. Mwachitsanzo, nthawi zambiri mumayenera kusuntha chiwongoladzanja m'magawo wamba. Izi zikutanthauza kuti mbiri ya 95% sikugwira ntchito. Ndipo ngati mwangomaliza kulembera 95/100, ndiye kuti mukhoza kupanga mabala olimba popanda kuyamba kuwerengera kwakukulu. Nthawi yomweyo ndikofunikira kunena kuti ngati chiwerengero chanu chinakhala ndi ziwiri zosadziwika, ndiye kuti silingathetse. Palibe pulofesa pano amene angakuthandizeni. Ndipo ntchito yanu, mwachiwonekere, ili ndi zovuta zowonjezereka zowonongeka.

Taganizirani chitsanzo china chomwe palibe chidwi. Woyendetsa galimotoyo anagula malita 5 a mafuta kwa ruble 150. Anaganizira za momwe angaperekere malita 30 a mafuta. Kuti tithetse vutoli, timatanthawuza ndi ndalama zomwe timafunikira. Mukhoza kuthetsa ntchitoyi nokha ndikuyankhira yankho lanu. Ngati simunadziwe momwe mungapangidwire, onani. 5 malita a mafuta ndi 150 rubles. Monga mu chitsanzo choyamba, tikulemba 5l-150p. Tsopano tengani chiwerengero chachitatu. Inde, izi ndi 30 malita. Gwirizanani kuti mapepala a 30 l - x akhalanso oyenera. Tiyeni tipitirire ku chilankhulo cha masamu.

5 malita - 150 rubles;

30 malita - x ruble;

5/30 = 150 / x.

Sungani izi:

5x = 30 * 150;

X = 900 ruble.

Kotero iwo anaganiza. Mu ntchito yanu, musaiwale kuti muwone momwe yankho likukwanira. Zimapezeka kuti ngati yankho liri lolakwika, magalimoto amatha kufika mofulumira makilomita 5000 pa ora ndi zina zotero. Tsopano inu mukudziwa momwe mungapangire chiwerengerocho. Komanso mukhoza kuthetsa. Monga mukuonera, palibe chovuta pa izi.