Предмет: Алгебра, автор: Disdainloser

Тело в первую секунду движения прошло 30 м, а в каждую следующую секунду - на 3 м меньше, чем за предыдущую. Какое расстояние прошло тело за 2-ую, 3-ю, 8-ую, 10-ую секунду?

Ответы

Автор ответа: Blok160807

0

Ответ:

дано

за 1 сек = 30м

найти

за 2,3,8,10 сёк

решение

за 2 сек = 30 - 3=27

за 3 сек = 27-3= 24

за 8 сек = 30 - 3 * 7=9

за 9 сек = 30 - 3*8=6

за 10 сек = 30 - 3*9 =3

Объяснение: лучший ответ пж)))))

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