Вопрос школьника по предмету Математика
Экскурсанты ехали на поезде 7 часов со скоростью 48 км в час и на автобусе 3 часа со скоростью 70 км в час . Сколько всего километров проехали экскурсанты?помготе написать условие и решения
Ответ учителя по предмету Математика
ДАНО
t1 = 7 ч-
V1 = 48 км/ч
t2 = 3 ч
V2 = 70 км/ч
НАЙТИ
S=? — расстояние между пунктами.
РЕШЕНИЕ
S = V1*t1 + V2*t2 = 48*7 + 70*3 = 336 + 210 = 546 км — ОТВЕТ
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Правильно ли?
bought
liked
bought
would test
1) 3,6+2х=5х+1,2
2) 0,7х-1,82=0,8х+3,46
3) 2⅓х+1½=1⅔х+2⅓