maTematika 7

saSualod TiToeulze3x + 4x + 5x3= 4x4x=20 x=5; 15; 20; 25.37. a) -58; b) -16; g) 0,5; d) -9.38. sami momdevno mTeli ricxvidan erT-erTi 3-is jeradia, xolo erTi mainc luwi.39. SevadginoT cxriliI II III IVdaTo m t t tmerabi t m t t (t — tyuili)vatangi t t m t (m — marTali)goCa t t t mCavataroT TiToeuli kombinaciis analizi. I — Tu daTom Tqva marTali, e.i. damnaSaveamerabi. merabis da goCas naTqvami, cxadia, gamodis tyuili, xolo vaxtangis naTqvami„me damnaSave varo“, marTalia, e.i. daTos marTali ar uTqvams. analogiuri msjelobiTdavadgenT, rom rigiT II kombinaciaa swori da damnaSavea vaxtangi.IV Tavis damatebiTi savarjiSoebi7. AB=2. 8. A wertilis koordinatia -16 an 6.9. a) -21,1; b) 5; g) -1; d) 1,5.10. a) ±7; b) Ø; g) 1; d) 5 an 1; e) 4 an 3; v) 0 an 4.13. a) 5; -2; b) -7; 3.14. a) 5; b) 3; g) -2.2715. a) 0,8; b) ; g) 5,35; d) 0,3.1116. a-1 unda iyos 12-is naturaluri gamyofi, e.i. a=2; 3; 4; 5; 7; 13.17. a) 9 ar aris 14-is gamyofi, e.i. 3x–1 mTeli ver iqneba, Sesabamisad ver iqneba mTeli x.18. Tu meore nakveTis farTobs aRvniSnavT x-iT, amocanis pirobis Sesabamisad miviRebT2gantolebas (4x–10)=x+10.320. aTeulebis cifri iyos a, maSin erTeulebis iqneba 13–a, saZiebeli ricxvi SeiZlebaCavweroT 10a+13x–a. ricxvi Cawerili igive cifrebiT, Sebrunebuli rigiT, iqneba 10(13–a)+a. gantolebas eqneba Semdegi saxe: 9a+13=27+10(13–a)+a. saZiebeli ricxvia 85.21. ana — 2x; Temo — x; giorgi — 2x–3; 2x+x+2x–3+30=52. x=5.82masc_cigni_VII_kl_cor.indd 82 03.07.2012 15:46:52