Предмет: Математика, автор: mariamikoluk18

Обчислити: 2 · 7,5 - 12 · 7,5​

Ответы

Автор ответа: Аноним
1

Відповідь:

Покрокове пояснення:

фото

Приложения:
Автор ответа: ret02
0

Ответ:

Удачи

Пошаговое объяснение:

2·7,5-12·7,5​= -75

1)2*7,5=15

2) 12* 7,5=90

3) 15-90= -75

*э это умножение

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The development of mechanical engineering in Ukraine and training highly qualified mechanical engineers for food industry were connected with the intensive development of sugar industry in central Ukraine, scientific and technical progress, the introduction of difficult mechanical equipment at the sugar-refineries.

Training of mechanical engineers for the equipment of sugar production began in 1884 with opening Technical classes in the town Smila.

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A student scientific group operates from 1920 year, where student probe the processes of food productions and develop the new constructions of equipment, in particular students are offer the improved constructions of centrifuge with scalding, Kestner evaporator and whole charts of sugar refining.

In 1929 year of Smila tekkhnikum of sugar refining is reorganized in Smils sugar institute which is next year moved in Kiev, where he became the part of the Kiev institute of sugar industry. From 1930 the faculty of engineering mechanics and pachaging technique has prepared mechanical engineers for the food industry of Ukraine. A lot of scientists worked developed mechanical engineering in our country: I. Kuharenko, O. Kirov, H. Znamenski, O. Lisovenko and others.

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