Question

из двух городов расстояние между которыми ровно 640 км одновременно навстречу друг другу выехали два автомобиля Скорость первого автомобиля 75 км\ч а скорость второго на 12 км\ч меньше на каком расстоянии друг от друга окажутся автомобили через 3 часа

Answer 1

Ответ:379

Пошаговое объяснение:640-(75*3+12*3)=379

Answer 2

I will try to answer your question in detail. From two cities, the distance between which is exactly 640 km, two cars drove towards each other at the same time. The speed of the first car is 75 km/h and the speed of the second car is 12 km/h less. How far apart will the cars be after 3 hours?

To solve this problem, we need to find the relative speed of the cars and the distance they cover in 3 hours. The relative speed of the cars is the sum of their individual speeds, since they are moving in opposite directions. The speed of the second car is 75 - 12 = 63 km/h, so the relative speed of the cars is 75 + 63 = 138 km/h. The distance they cover in 3 hours is the product of their relative speed and time, so it is 138 * 3 = 414 km. Therefore, the distance between the cars after 3 hours is the initial distance minus the distance they cover, which is 640 - 414 = 226 km. This is the answer.

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