5.
7 / 1,4 = 15 / x
1,4 / 7 = x / 15
0,2 × 15 = x
x = 3
8. z/y = 28
z/x = 21
z/0,75x = 28
z/1,75x = 12
Ответ:12
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5.
7 / 1,4 = 15 / x
1,4 / 7 = x / 15
0,2 × 15 = x
x = 3
8. z/y = 28
z/x = 21
z/0,75x = 28
z/x = 21
z/1,75x = 12
Ответ:12