Длина и ширина прямоугольника вместе составляют 21 см. Какова длина и ширина, если длина в 6 раз больше, чем его длина ?

Длина и ширина прямоугольника вместе составляют 21 см. Какова длина и ширина, если длина в 6 раз больше, чем его длина ?
- Предмет:
  Математика
- Автор:
  t-dawg
- 5 лет назад

Ответы 3

я так и думала, спасибо )
- Автор:
  kristianv3mq
- 5 лет назад
- 0
Пусть ширина равна х, тогда длина равна 6х6x + x = 217x = 21x = 3Ответ: 3 см и 18 см.
- Автор:
  jamaril1w5
- 5 лет назад
- 0
Пусть ширина х, тогда длина равна 6х , то составим уравнение6х+х=217х=21х=3 3*6=18Ответ: 3 и 18
- Автор:
  pongomcmahon
- 5 лет назад
- 0
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Длина и ширина прямоугольника вместе составляют 21 см. Какова длина и ширина, если длина в 6 раз больше, чем его длина ?

Ответы 3

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