maTematika 7

14. mTeli gzis 40% 80 km-ia dasagebi darCa 60%, e.i. darCa dasagebia 120 km.15. wynari okeane 49,4%atlantis okeane 25,3%indoeTis okeane 21,2%360612 # 49,4100360612 # 25,3100360612 # 21,2100= 177142,32 aT. kv. km.= 91234,836 aT. kv. km.= 76449,744 aT. kv. km.CrdiloeT yinulovani okeane 14,1%360612 # 14,1100= 50846, 292aT. kv. km.16. am magaliTis amoxsnis dros moswavlem ar unda iangariSos.a) 60 metia, imitom, rom is 100%-ia; b) 50 da 50-is 100% tolia;3 1g) 75%= ; d) 37-is 110% metia; e) %4 21< ; v) n-is 90% naklebia n-ze.218. mTeli klasis moswavleTa raodenoba 100%-ia, cxadia vaJebi 80%-ia.19. 100–(70+25)=5 bavSvebi 5%-ia.20. moswavleebma fexiT 10% iares. e.i.50 # 10100= 5 km.21.500 # 6,5100= 32,5;700 # 4,5100= 31,5.22. x+x+30°=90°; 30°; 60°.76 $ 12523. = 95.100x - y25. =x 16 , saidanacxx - = y 6, xolo 2x 2 1x - y= 6= 3.27. 5x-2.28. 33·5+(a+b+c)=27·8a+b+c=51 saSualo 17-is tolia.6. ricxvis povna misi procentis mixedviTreziume:moswavles unda esmodes formulaSi a # n = b TiToeuli komponentis azri da Sesabamis100amocanebSi unda icodes, rogor ipovos erT-erTi, an a an b, roca meore da procentebisraodenoba mocemulia, kerZod, ricxvi misi mocemuli procentis mixedviT.62masc_cigni_VII_kl_cor.indd 62 03.07.2012 15:46:37