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оля1441
оля1441
02.12.2020 09:53 •  Математика

Вычисли и запиши ответ: урок длится 45 минут,а перемены в 9 раз короче урока. сколько длятся четыре урока и перемены между ними?

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Ответ:
winterwhite123
winterwhite123
02.12.2020
1) 45 : 9 = 5 мин. - длится одна перемена
2) 45 * 4 = 180 мин. - длительность 4х уроков
Между четырьмя уроками 3 перемены :
3) 5 * 3 = 15 мин. - длительность перемен
4) 180 + 15 = 195 мин. = 3 ч 15 мин. - длятся 4 урока и перемены между ними - ответ.
4,6(32 оценок)
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Ответ:
astasevbogdanp08dn2
astasevbogdanp08dn2
02.12.2020

Пошаговое объяснение:

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4,7(20 оценок)
Ответ:
1ЛиКа6
1ЛиКа6
02.12.2020
1)i heard this news   b)have  2)my uncle languagesb)speaks  3.open the brackets and put the verb in the correct form.1)john is  working  very hard at the moment.2)when they  finished  their work, they went home.3)what did  you do last week? 4.fill in the blanks with the following modal verbs: can,could,must,may,should.1)she should get up early in the morning  2)ann can sing,dance and draw.3)you must  cross the street when the light is green  4)could  you pass me a scone,please? 5) may i ask you a question?
4,6(93 оценок)
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