(х-3)/5 = 1/13 - это пропорция
(х - 3) · 13 = 5 · 1 - свойство пропорции
13х - 39 = 5
13х = 5 + 39
13х = 44
х = 44/13
- - - - - - - - - - - - - - - - -
Проверка:
(3 целых 5/13 - 3) : 5 = 1/13
5/13 : 5 = 1/13
5/13 · 1/5 = 1/13
1/13 = 1/13
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
(х-3)/5 = 1/13 - это пропорция
(х - 3) · 13 = 5 · 1 - свойство пропорции
13х - 39 = 5
13х = 5 + 39
13х = 44
х = 44/13
х = 3 целых 5/13
- - - - - - - - - - - - - - - - -
Проверка:
(3 целых 5/13 - 3) : 5 = 1/13
5/13 : 5 = 1/13
5/13 · 1/5 = 1/13
1/13 = 1/13