Предмет: Математика, автор: kesshaaaa

Екскурсанти за день пройшли 13,4 км. Зранку вони йшли 3 години, а після обіду ще 1 години. Скільки кілометрів екскурсанти пройшли вранці, якщо після обіду їх швидкість знизилася на 1 км / год. З якою швидкістю йшли екскурсанти вранці? помогите пожалуйста♥︎

Ответы

Автор ответа: Vo1uptas

V*3 + (V-1)*1=13,4

V=14,4/4=3,6

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