Предмет: Математика, автор: cat10004

Эскаватор за 1 час копает 18 м канавы.Одну канаву он выкопал за 7 ч, а другую-за 19 ч. Сколько метров канавы выкопал экскаватор за это время?

Ответы

Автор ответа: рашид00000
3
1) 18*7=126 (м)  канавы выкопал за 7 часов                                                         2) 18*19=342 (м) канавы выкопал за 19 часов                                                    3) 126+342=468(м) канавы выкопал за все время                                               4) 7+19=26 (часов) работал всего                                                                     Ответ: За 26 часов работы,выкопал 468 (м) канавы
cat10004: Сппбо
cat10004: Спасибо*
рашид00000: на здоровье...удачного дня и хороших оценок!!!!!!
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Test 8. Fill in the correct prepositions to, about, from, in, into, on, with, for .

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20. Can you explain ___ me what you mean?

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16. They arrived ___ the party at 8 p.m.

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