maTematika 7

aTwiladebiT. msjeloba SeiZleba gagrZeldes manam, vidre moswavleebi ar mivlenim daskvnamde, rom sasurvelia arCeuli iqnes iseTi ricxvi, romelic sayovelTaostandarti iqneba amgvari saxis raodenobrivi informaciis gamoqveynebisas. amisSemdeg, bunebrivad SeiZleba procentis cnebis Semotana (ix. paragrafi me–5. procenti).vTxovoT moswavleebs, gaixsenon sad SexvedriaT es simbolo, vaCvenoT raime, razedacaRniSnulia Semadgenel nawilebs Soris TanafardobT procentuli saxiT (mag. wamlisyuTi an Sokoladis fila) da vTxovoT procentTan dakavSirebuli warwerebisganmarteba.mokled gavacnoT moswavleebs procentis da misi gamomsaxveli simbolos warmoSobisistoria, ganvumartoT sityva „procentis“ etimologia (5 wT).vavarjiSoT moswavleebi wiladebisa da aTwiladebis procentis saxiT gamosaxvaSi dapiriqiT (sav. 2, sav. 3, sav. 7, sav. 11, sav. 12); ricxvis procentis povnaSi (sav. 4, sav. 8, sav.9, gv. 16) (15 wT).sasurvelia savarjiSoebis miTiTebul nomrebSi mocemuli magaliTebidan nawiligairCes gakveTilze, nawili ki mieces saSinao davalebad.„procenti“ me–15 saukunis bolos vaWrobasTan dakavSirebulma saqmianobam warmoSva.magaliTad, mogebam, wagebam, gadasaxadebma, Tumca es idea gacilebiT adre gaCnda, maSin,roca romis keisarma avgustusma gadasaxadebi gaadida yvela im produqtze, romelicgayidvaSi iyo. vaWrobidan amoRebuli gadasaxadi 1/100–s Seadgenda. gadasaxadi yovelgaTavisuflebul monaze 1/20–s, xolo yovel gayidul monaze — 1/25–s.me–15 saukunis italiuri „manuskriatebi“ Seicavs 20 procentis aseT Canawers:„20??????100“.me–16–17 saukuneebSi komerciul saqmianobaSi ukve aqtiurad gamoiyeneboda procenti– mogebisa Tu wagebis saCveneblad.italieli vaWrebi mogebas yovel 100 dukatze ase angariSobdnen: „20 per cento?“ (e.i.yoveli 100–dan 20). mokled ki werdnen `20 pc“ Cqari werisas pc waagavda „%“–s da aseTandaTanobiT „%“ simbolo gaxda aRmniSvneli „measedisa“.500–is 20% niSnavs – 20 500–is yoveli 100–dan, e.i. 500–is 20%=20·500100 =100.20masc_cigni_VII_kl_cor.indd 20 03.07.2012 15:46:25