Question

Из двух городов в 10 часов выехали навстречу друг другу две машины.На сколько километров они приблизились друг к другу за 1 ч ,если одна машина ехала со скоростью 80км/ч,а другая 70км/ч

Answer 1

80+70=150 км
ответ: 150 км 

Answer 2

70 км + 80 км = 150 кмПервый за час прошёл 80 км, второй за час - 70 км. Значит. они приблизились на 150 км. Я думаю,что так.

Answer 3

Problem Analysis

Two cars are traveling towards each other from two different cities. We need to determine how close they get to each other in 1 hour, given that one car is traveling at a speed of 80 km/h and the other car is traveling at a speed of 70 km/h.

Solution

To find out how close the cars get to each other, we need to calculate the total distance covered by both cars in 1 hour. We can then subtract the sum of the distances covered by each car from the total distance between the two cities.

Let's calculate the distance covered by each car in 1 hour:

- Car 1: Speed = 80 km/h, Time = 1 hour, Distance = Speed * Time = 80 km - Car 2: Speed = 70 km/h, Time = 1 hour, Distance = Speed * Time = 70 km

Now, let's calculate the total distance between the two cities:

- Total Distance = Distance covered by Car 1 + Distance covered by Car 2 = 80 km + 70 km = 150 km

Finally, let's calculate how close the cars get to each other:

- Distance between the two cars = Total Distance - (Distance covered by Car 1 + Distance covered by Car 2) = 150 km - (80 km + 70 km) = 150 km - 150 km = 0 km

Therefore, the two cars get as close as 0 kilometers to each other in 1 hour.

Conclusion

In 1 hour, the two cars get as close as 0 kilometers to each other.