Question

Помогите пж номер C7. короче не понятно щас напишу. C7. Семья из трех человек из Саратова решили от дохнуть в Сочи. Посоветуйте им ,как будет дешевле доехать до сочи (поездом или на машине) и укажите минимальную стоимость поездки. Для расчётов воспользуйтесь информацией ниже. 1.Расстояние от Саратова до Сочи ровно 1400 км. 2.Расход бензина на 100 км равен 8 литров. 3.Стоимость 1 л бензина равна 30 рублей. 4.Стоимость билетов в сором поезде на 1 человека равна 3648 руб.

Answer 1

РЕШЕНИЕ
1) Поездом три билета 
3648 руб * 3 = 10 944 руб - поездом.
2) В машине - только на бензин.
1400 км  * 8/100 л/км * 30 руб/л = 3360 руб - на машине.
ОТВЕТ На машине дешевле даже чем один билет на поезд.

Answer 2

Ответ и решение на фото

Answer 3

Calculation of the Cheapest Mode of Transportation and Minimum Cost for a Family of Three from Saratov to Sochi

To determine the cheapest mode of transportation and the minimum cost for a family of three to travel from Saratov to Sochi, we will compare the costs of traveling by train and by car.

Here are the relevant pieces of information for the calculations:

1. Distance from Saratov to Sochi: 1400 km. 2. Fuel consumption: 8 liters per 100 km. 3. Cost of 1 liter of gasoline: 30 rubles. 4. Cost of train tickets per person: 3648 rubles.

Let's calculate the costs for both options.

Traveling by Car

To calculate the cost of traveling by car, we need to consider the fuel consumption and the cost of gasoline.

1. Fuel consumption for the entire trip: (1400 km / 100 km) * 8 liters = 112 liters. 2. Cost of gasoline for the entire trip: 112 liters * 30 rubles per liter = 3360 rubles.

Therefore, the minimum cost for a family of three to travel from Saratov to Sochi by car would be 3360 rubles.

Traveling by Train

To calculate the cost of traveling by train, we need to consider the cost of train tickets for each family member.

1. Cost of train tickets for a family of three: 3 * 3648 rubles = 10944 rubles.

Therefore, the minimum cost for a family of three to travel from Saratov to Sochi by train would be 10944 rubles.

Comparison and Recommendation

Comparing the costs of traveling by car and by train, we find that traveling by car would be cheaper, with a minimum cost of 3360 rubles, compared to 10944 rubles for traveling by train.

Therefore, it would be more cost-effective for the family of three from Saratov to travel to Sochi by car, with a minimum cost of 3360 rubles.

Please note that these calculations are based on the provided information and do not take into account other factors such as tolls, parking fees, and potential additional expenses during the trip. It is always recommended to plan and budget accordingly before embarking on a journey.