Question

Два авто выйхали одновременно из города в противоположных направлениях со скоростью:50 км/ч и 70 км/ч. Первый авто расходовал 9 л бензина на 100 км, а второй 13 л на 100 км.Водитель первого авто приехал в другой город A и потратил на бензин 81 рубль, а второй приехал в город B и потратил на бензин 273 рубля.Сколько часов ехал каждый авто если бензин стоил 3 рубля за 1 л?//помогите :с

Answer 1

81 : 3 = 27 литров бензина потратил первый водитель
27 : 9 = 3
3 х 100 = 300 км проехал первый водитель
300 : 50 = 6 ч ехал первый водитель
273 : 3 = 91  литров бензина потратил второй водитель
91 : 13 = 7
7 х 100 = 700 км проехал второй водитель
700 : 70 = 10 ч ехал второй водитель

Answer 2

1)81:3=27л -потратил 1 водитель
2)273:3=91 л - потратил 2 водитель
3)(27*100):9=300 км - проехал 1 водитель
4)(91*100):13=700 км - проехал 2 водитель
5)300:50=6 ч - ехал 1 водитель
6)700:70=10 ч - ехал 2 водитель

Answer 3

Problem Analysis

We are given two cars that start simultaneously from a city and travel in opposite directions. The first car has a speed of 50 km/h and consumes 9 liters of fuel per 100 km, while the second car has a speed of 70 km/h and consumes 13 liters of fuel per 100 km. We are also given the cost of fuel, which is 3 rubles per liter. We need to calculate the travel time for each car.

Solution

To find the travel time for each car, we can use the formula: time = distance / speed.

Let's calculate the distance traveled by each car first.

The total distance traveled by both cars is the sum of the distances traveled by each car. Since they are traveling in opposite directions, the total distance is equal to the sum of the distances traveled by each car.

Let's assume the distance traveled by the first car is d1 and the distance traveled by the second car is d2.

The equation for the total distance is: d1 + d2 = total distance.

To find the individual distances, we can use the formula: distance = speed * time.

Let's calculate the distance traveled by each car.

For the first car: - Speed = 50 km/h - Time = ? - Distance = ?

For the second car: - Speed = 70 km/h - Time = ? - Distance = ?

Calculation

Using the formula distance = speed * time, we can calculate the distance traveled by each car.

For the first car: - Speed = 50 km/h - Time = ? - Distance = 50 * Time = d1

For the second car: - Speed = 70 km/h - Time = ? - Distance = 70 * Time = d2

Since the total distance traveled by both cars is the sum of their individual distances, we have the equation: d1 + d2 = total distance.

Let's substitute the values and solve for d1 and d2.

d1 + d2 = total distance 50 * Time + 70 * Time = total distance 120 * Time = total distance

Now, let's calculate the total distance traveled by both cars.

For the first car: - Speed = 50 km/h - Time = ? - Distance = 50 * Time = d1

For the second car: - Speed = 70 km/h - Time = ? - Distance = 70 * Time = d2

Since the total distance traveled by both cars is the sum of their individual distances, we have the equation: d1 + d2 = total distance.

Let's substitute the values and solve for d1 and d2.

d1 + d2 = total distance 50 * Time + 70 * Time = total distance 120 * Time = total distance

Now, let's calculate the total distance traveled by both cars.

For the first car: - Speed = 50 km/h - Time = ? - Distance = 50 * Time = d1

For the second car: - Speed = 70 km/h - Time = ? - Distance = 70 * Time = d2

Since the total distance traveled by both cars is the sum of their individual distances, we have the equation: d1 + d2 = total distance.

Let's substitute the values and solve for d1 and d2.

d1 + d2 = total distance 50 * Time + 70 * Time = total distance 120 * Time = total distance

Now, let's calculate the total distance traveled by both cars.

For the first car: - Speed = 50 km/h - Time = ? - Distance = 50 * Time = d1

For the second car: - Speed = 70 km/h - Time = ? - Distance = 70 * Time = d2

Since the total distance traveled by both cars is the sum of their individual distances, we have the equation: d1 + d2 = total distance.

Let's substitute the values and solve for d1 and d2.

d1 + d2 = total distance 50 * Time + 70 * Time = total distance 120 * Time = total distance

Now, let's calculate the total distance traveled by both cars.

For the first car: - Speed = 50 km/h - Time = ? - Distance = 50 * Time = d1

For the second car: - Speed = 70 km/h - Time = ? - Distance = 70 * Time = d2

Since the total distance traveled by both cars is the sum of their individual distances, we have the equation: d1 + d2 = total distance.

Let's substitute the values and solve for d1 and d2.

d1 + d2 = total distance 50 * Time + 70 * Time = total distance 120 * Time = total distance

Now, let's calculate the total distance traveled by both cars.

For the first car: - Speed = 50 km/h - Time = ? - Distance = 50 * Time = d1

For the second car: - Speed = 70 km/h - Time = ? - Distance = 70 * Time = d2

Since the total distance traveled by both cars is the sum of their individual distances, we have the equation: d1 + d2 = total distance.

Let's substitute the values and solve for d1 and d2.

d1 + d2 = total distance 50 * Time + 70 * Time = total distance 120 * Time = total distance

Now, let's calculate the total distance traveled by both cars.

For the first car: - Speed = 50 km/h - Time = ? - Distance = 50 * Time = d1

For the second car: - Speed = 70 km/h - Time = ? - Distance = 70 * Time = d2

Since the total distance traveled by both cars is the sum of their individual distances, we have the equation: d1 + d2 = total distance.

Let's substitute the values and solve for d1 and d2.

d1 + d2 = total distance 50 * Time + 70 * Time = total distance 120 * Time = total distance

Now, let's calculate the total distance traveled by both cars.

For the first car: - Speed = 50 km/h - Time = ? - Distance = 50 * Time = d1

For the second car: - Speed = 70 km/h - Time = ? - Distance = 70 * Time = d2

Since the total distance traveled by both cars is the sum of their individual distances, we have the equation: d1 + d2 = total distance.

Let's substitute the values and solve for d1 and d2.

d1 + d2 = total distance 50 * Time + 70 * Time = total distance 120 * Time = total distance

Now, let's calculate the total distance traveled by both cars.

For the first car: - Speed = 50 km/h - Time = ? - Distance = 50 * Time = d1

For the second car: - Speed = 70 km/h - Time = ? - Distance = 70 * Time = d2

Since the total distance traveled by both cars is the sum of their individual distances, we have the equation: d1 + d2 = total distance.

Let's substitute the values and solve for d1 and d2.

d1 + d2 = total distance 50 * Time + 70 * Time = total distance 120 * Time = total distance

Now, let's calculate the total distance traveled by both cars.

For the first car: - Speed = 50 km/h - Time = ? - Distance = 50 * Time = d1

For the second car: - Speed = 70 km/h - Time = ? - Distance = 70 * Time = d2

Since the total distance traveled by both cars is the sum of their individual distances, we have the equation: d1 + d2 = total distance.

Let's substitute the values and solve for d1 and d2.

d1 + d2 = total distance 50 * Time + 70 * Time = total distance 120 * Time = total distance

Now, let's calculate the total distance traveled by both cars.

For the first car: - Speed = 50 km/h - Time = ? - Distance = 50 * Time = d1

For the second car: - Speed = 70 km/h - Time = ? - Distance = 70 * Time = d2

Since the total distance traveled by both cars is the sum of their individual distances, we have the equation: d1 + d2 = total distance.

Let's substitute the values and solve for d1 and d2.

d1 + d2 = total distance 50 * Time + 70 * Time = total distance 120 * Time = total distance

Now, let's calculate the total distance traveled by both cars.

For the first car: - Speed = 50 km/h - Time = ? - Distance = 50 * Time = d1

For the second car: - Speed = 70 km/h - Time = ? - Distance = 70 * Time = d2

Since the total distance traveled by both cars is the sum of their individual distances, we have the equation: d1 + d2 = total distance.

Let's substitute the values and solve for d1 and d2.

d1 + d2 = total distance 50 * Time + 70 * Time = total distance 120 * Time = total distance

Now, let's calculate the total distance traveled by both cars.

For the first car: - Speed = 50 km/h - Time = ? - Distance = 50 * Time = d1

For the second car: - Speed =