maTematika 7

amoxsnebi, miTiTebebi:AC1. g) BC=3.26. a)I piqtogramiT Cans, rom 1 manqanis gamosaxuleba 4 gayidul manqanas gulisxmobs (16gayiduli opeli aRniSnulia 4 manqaniT), e.i. folcvagenis markis manqana gayidulia3×4=12 cali.II SevadginoT proporcia164=x, saidanac x=12.3b) (6–5)×4=4; g) (4+3+6+5)×4=18×4=72.AM7. BMEK8. EF=2 8, e.i.7 MB=3 21, e.i.8 EF=2, saidanac MB=28, e.i. AB=36.7=3, EF=56, e.i. FK=56–21=35.821Suawertilebs Soris manZili toli iqneba +35= 28.2 29. mocemuli cxra ricxvis jamia 16×9=144, TerTmeti ricxvisaTvis miviRebT144 + a + b =a + b16 , e.i. a+b=32; = 16 .11210. a=b+ b $ 20=6 b 5, e.i. b= a a 100 =a– %-iT.100 5 6 6 6b11. a = ; a+b=b+ b 44 = 5 b5b4 $ 100%. e.i. Cven gvainteresebs -is ramdeni %-ia b. n= =80%.44514.2n+ 3 =32 + ricxvi mTelia, Tu n 3-is gamyofia, e.i. n=1; 3.n nreziume:9. proporciuli sidideebimoswavlem unda SeZlos pirdapirproporciuli sidideebis ganmarteba. realurcxovrebaSi pirdapirproporciuli sidideebis dafiqsireba. maTi Tvisebebisgamoyeneba Sesabamisi problemebis gadawyveta.amoxsnebi, miTiTebebi:23. =3, x=12. 4.8 x2=5, x=6,25.2, 5 x5. 9-jer mets, e.i. 15×9=135. 6. 21-3=1,8 81 — 20km. 1 — x x=160km.865masc_cigni_VII_kl_cor.indd 65 03.07.2012 15:46:42