!!!Срочно,пожалуйста,очень нужно!!!!номер 148!!!!!!!

!!!Срочно,пожалуйста,очень нужно!!!!номер 148!!!!!!!
- Предмет:
  Математика
- Автор:
  leannakent
- 6 лет назад

Ответы 2

Формула S=75*tа). S = 75*15=1125;б). 75*t=900t=900/75t=12
- Автор:
  melany
- 6 лет назад
- 0
За 12мин V - 75м/мин s - ? Д !------------------------------------!-------------------------! Ш S = 1500а) S - t * 75 = s 1500 - 12*75 = 600 м - от Серёжи до школы через 12 мин после выхода из дома. t - ? s = 900б) Д !--------------------------!------------------------------------------! Ш S = 1500t = (S - s) : v (1500 - 900): 75м/мин = 8 мин - через 8мин после выхода из дома, растояние между Серёжей и школой будет 900м.
- Автор:
  brodieavila
- 6 лет назад
- 0
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!!!Срочно,пожалуйста,очень нужно!!!!номер 148!!!!!!!

Ответы 2

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