Предмет: Математика, автор: мармеладка32

(270:y-2)x30=7x120 - уравнение.
Я буду сильно рада если кто нибудь поможет! :3


мармеладка32: Ну плиз :)
мармеладка32: Буду очень благодарна!

Ответы

Автор ответа: Error3D
11
(270:у-2)х30=7х120,
(270:у-2)х30=840,
270:у-2=840:30,
270:у-2=28,
270:у=28+2
270:у=30
у=270:30
у=9.

мармеладка32: Спасибо))
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1. Cuckoos (not build) nests. They (use) the nests of other birds.
2. She usually (drink) coffee, but today she (drink) tea.
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