Question

Две автомашины выехали навстречу друг другу из разных городов через 3,8 часа они встретились найдите расстояние между городами ,если скорость первой машины 67,4км/ч , а скорость второй на 12,5км/ч больше

Answer 1

67,4+12,5=79,9км/ч - скорость 2 машины
67,4+79,9=147,3км/ч - скорость сближения
147,3*3,8=559,74км - расстояние между городами

2 способ
67,4*3,8=256,12км - проехала 1 машина до встречи
79,9*3,8=303,62км - проехала 2 машина до встречи
256,12+303,62=559,74км - расстояние между городами

Answer 2

67,4 + 12,5 = 79,9 ( км/час ) скорость второй 
67,4 + 79,9 = 147,3 ( км/час ) скорость сближения 
3,8 * 147,3 = 559,754 ( км ) Ответ

Answer 3

Calculation of Distance between Cities

To find the distance between the two cities, we can use the formula:

Distance = Speed × Time

Given that the first car has a speed of 67.4 km/h and the second car has a speed 12.5 km/h greater than the first car, we can calculate the time it took for them to meet.

Let's assume the distance between the two cities is represented by 'd'.

The time it took for the cars to meet is given as 3.8 hours.

Using the formula, we can set up the following equation:

67.4 km/h × 3.8 hours + (67.4 km/h + 12.5 km/h) × 3.8 hours = d

Simplifying the equation:

67.4 km/h × 3.8 hours + 79.9 km/h × 3.8 hours = d

Now, we can calculate the distance between the two cities.

d = (67.4 km/h × 3.8 hours) + (79.9 km/h × 3.8 hours)

Calculating the distance using the given values:

d = (67.4 km/h × 3.8 hours) + (79.9 km/h × 3.8 hours) = 256.12 km + 303.62 km = 559.74 km

Therefore, the distance between the two cities is approximately 559.74 km.