Вопрос школьника по предмету Математика
Периметр трикутника дорівнює 33 см. Довжина першої його сторони вдвічі більша за довжину другої й на 7 см більша за довжину третьої. Обчисли довжину кожної сторони трикутника
Ответ учителя по предмету Математика
Ответ:
Р=а+в+с=33
Пошаговое объяснение:
Сторона А будет х, тогда сторона В будет 2х, третья сторона С будет х+7
Составляем уравнение
х+2х+х+7=33
4х=33-7
4х=26
х=26/4
х=6,5 сторона А
Сторона В=2х
В=2*6,5=13
Сторона С=7+х
С=7+6,5=13,5
Ответ 13,5 6,5. 13
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All he knew was that he wanted totake him straight to England to sellhim.
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They nearlymissed it, but they were luckybecause the bus was a little late.
When it arrived, they got on, boughta ticket, and their trip began.