Ответ:
4.
t1 = 30/v (ч), t2 = 17/v+2 (ч)
t = t1 + t2 = 30/v + 17/v+2
При V = 15,значит t = 30/15 + 17/15+2 = 2 + 1 = 3 (ч)
3.
3^9/4×8/3^3
3^2×2
9×2=18
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Answers & Comments
Ответ:
4.
t1 = 30/v (ч), t2 = 17/v+2 (ч)
t = t1 + t2 = 30/v + 17/v+2
При V = 15,значит t = 30/15 + 17/15+2 = 2 + 1 = 3 (ч)
3.
3^9/4×8/3^3
3^2×2
9×2=18