Предмет: Математика, автор: Spagin7512

Сколько будет 6/7 от числа 90

Ответы

Автор ответа: sovvas10

1

Ответ:

Пошаговое объяснение:

80 но это не точно

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Text 1
Beth was ill – she was sicker than anyone thought. The girls knew nothing about illness, and Mr Laurence, their neighbour, was not allowed to see her. Meg stayed at home so that she wouldn’t infect the family she worked for. She did the housework just to have something to do in the day. She felt terrible when she wrote letters to Mrs March, their mother, but said nothing in them about Beth’s illness. She didn’t think it was right, but she had promised Hannah that she wouldn’t say anything – Hannah had told her she didn’t want Mrs March to worry about something that Beth would probably get over.
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Text 1
1 Why didn’t Meg tell her mother about Beth’s illness?
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2 Why was it easy for Jo to take care of Beth?
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Text 2
3 Why did so many eighteenth- and nineteenth-century authors write about scarlet fever?
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4 When was scarlet fever no longer a deadly disease?
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Составь систему для решения задачи.

Двое рабочих вместе изготовили 460 деталей.
Первый рабочий работал 7 дня(-ей), а второй — 6 дня(-ей).
Сколько деталей изготавливал каждый рабочий за один день, если второй рабочий за 2 дня изготавливал на 60 деталей меньше, чем первый рабочий за 3 дня?

Пусть деталей в день изготавливал первый рабочий, а второй —
деталей в день. Выбери подходящую математическую модель:
{7+6=4603−60=2
{7+6=4603=2−60
{+=460:133=2−60
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другой ответ
{3−60=213(+)=460

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