Х+х+15=155
2х=155-15
2х=140
х=140÷2
х=70° угол АОС
2) 70+15=85°
Ответ: угол СОВ 85°
1. <span>700000 – 72 * (63760 : 40 * 15 – 15376) = </span>85552<span>
1) </span>63760 : 40 = 1594
2) 1594 * 15 = 23910
3) 23910 - 15376 = 8534
4) 72 * 8534 = 614448
5) 700000 - 614448 = 85552
2. <span>22269 : 3 * 17 * 7 – 39606 + 1338 = </span>845069<span>
1) 22269 : 3 = 7423
2) 7423 * 17 = 126191
3) 126191 * 7 = 883337
</span>4) 883337 - 39606 = 843731
5) 843731 + 1338 = 845069