nbUfnbujljt !txbwmfcb!!WJJ!lmbtTj! - Ganatleba

- 138 -
1. I. = (–7,2 – 0,6) · (–0,2) = –7,8 · (–0,2) = 15,6 (4 q).
2. I. 12x (1 q); II. –4a (1 q); III. –10b (1 q); IV. –12x + 30 (1 q).
3. I. –0,5x + 0,3 = 1,2 (2 q); x = –1,8 (2 q).
4. ABC, MNK da PQR samkuTxedebis sworad daxazva - 2 q.
marTkuTxaa MNK samkuTxedi (1 q).
misi kaTetebia MN da NK, hipotenuza - MK (1 q).
5. I. patara goWi 1 dReSi Wams 1/4 kg saWmels (1 q), didi ixvi -
1/7 kg-s (1 q). amitom ufro met saWmels Wams patara goWi (1 q).
II. 2 patara goWi da 5 didi ixvi 1 dReSi Wams 2 + 5 = 34 = 17
4 7 28 14
kg saWmels (2 q), amitom 17 kg saWmels SeWamen 14 dReSi (1 q).
rigi II
1. II. = (–14,4 + 0,7) · (–0,4) = (–13,7) · (–0,4) = 5,48 (4 q).
2. V. –13y (1 q); VI. 5a (1 q); VII. –11x (1 q); VIII. –4 + 8c (1 q).
3. II. –0,4y + 0,4 = 3,2 (2 q); y = –7 (2 q).
4. EFK, BCD da ATP samkuTxedebis sworad daxazva - 2 q.
marTkuTxaa ATP samkuTxedi (1 q).
misi kaTetebia AT da TP, hipotenuza - AP (1 q).
5. I. 1 TuSi mqsoveli 1 kviraSi qsovs 1/5 fardags (1 q), 1 xevsuri
- 1/6 fardags (1 q). amitom ufro swrafad qsovs TuSi (1 q).
II. 3 TuSi da 4 xevsuri mqsoveli erTad muSaobiT 1 kviraSi
moqsovs 3 + 4 = 38 = 19 fardags (2 q), amitom 19 aseTive
5 6 30 15
fardags moqsoven 15 kviraSi (1 q).
sakontrolo wera # 14 rigi I
1. I. = (–64 – 81)·(–2)–28 = (–145)·(–2)–28 = –290 –28 = –318 (4 q).
2. I. –19x +18 (2 q); II. 22a – 32 (2 q).
3. I. 5y – 48 = 18 + 4y – 1 (2 q); y = 65 (2 q).
4. swori naxazi - 4 q.
5. a) 1 x + 1 x = 1 (3 q).
4 5
dasabuTeba: xelosani 1 sT-Si Seasrulebs mTeli samuSaos 1/4
nawils, Segirdi _ 1/5 nawils, orive erTad x sT-Si Seasruleben