Предмет: Математика, автор: риль

в сборнике фантастики две повести . Первая занимает 35 страниц а вторая- 2/7 книги. Сколько всего страниц в книге? пожалуйста с решением

Ответы

Автор ответа: stas0107
0
1-2/7=5/7- занимает 1я повесть;
35×7÷5=49(стр.)-в книге
Автор ответа: риль
0
спасибо
Автор ответа: риль
0
можешь ещё одну задачку решить?
Автор ответа: stas0107
0
да
Автор ответа: stas0107
0
1-2/5=3/5(пути)-проехал; 36÷3×5=60(км)-весь путь
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