Question

Расстояние между двумя городами 600км.Навстречу друг другу из этих городов вышли одновременно две машины.Одна имеет скорость 60км в час,а другая 40 км в час.Чему равно расстояние между машинами через t часов после выезда?

Answer 1

60+40=100(км/ч) - общая скорость

100хt - расстояние, которое проедут обе машины за t часов

600-100t=100(6-t) - расстояние между машинами через t часов 

ответ: 100(6-t) 

Answer 2

Calculating the Distance Between the Cars

To calculate the distance between the two cars after t hours, we can use the formula: distance = speed * time.

The first car has a speed of 60 km/h, and the second car has a speed of 40 km/h. Both cars have been traveling for the same amount of time, t hours.

Calculating the Distance Traveled by Each Car

The distance traveled by the first car after t hours is given by the formula: distance = speed * time. Substituting the values, we get: distance1 = 60t.

Similarly, the distance traveled by the second car after t hours is given by the formula: distance = speed * time. Substituting the values, we get: distance2 = 40t.

Finding the Distance Between the Cars

The total distance between the two cars after t hours is the sum of the distances traveled by each car. Therefore, the distance between the cars after t hours is: distance_total = distance1 + distance2.

Substituting the values of distance1 and distance2, we get: distance_total = 60t + 40t.

Simplifying the expression, we get: distance_total = 100t.

So, the distance between the two cars after t hours is 100t kilometers.

Therefore, the distance between the two cars after t hours is 100t kilometers.