Забыл как решать((( Ab=20см, между ними точка С. Найдите длину АС ВС если АС больше ВС на 5 см? С

Забыл как решать((( Ab=20см, между ними точка С. Найдите длину АС ВС если АС больше ВС на 5 см? С решением.
- Предмет:
  Математика
- Автор:
  joshpybu
- 5 лет назад

Ответы 2

Начерти отрезок длиной 20 см. отмерь 15 см от начала. там и будет точка c
- Автор:
  elifywu
- 5 лет назад
- 0
Выразим АС через ВС АС = ВС+ 5 Теперь составим уравнение ВС+(ВС+5)=20 И решаем ВС + ВС + 5 = 202*ВС= 20-5 2*ВС = 15 ВС=15/2 = 7,5 Из этого АС= 7,5+5 =12,5Ответ: ВС= 7,5 и АС =12,5
- Автор:
  elvis4
- 5 лет назад
- 0
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Забыл как решать((( Ab=20см, между ними точка С. Найдите длину АС ВС если АС больше ВС на 5 см? С решением.

Ответы 2

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