Question

1486 - двигатель за 7,5 ч расходует 111 л горючего. сколько литров горючего израсходует двигатель за 1,8 ч 1490 - товар массой в 13,3 т распределили на три автомашины. на первую автомашину погрузили в 1,3 раза больше, а не вторую - в 1,5 раза больше, чем на третью автомашину . сколько тонн товара погрузили на каждую автомашину. обе задачи вроди уравнением решаються

Answer 1

1486:111/7,5=14,8-за час
         1,8*14,8=26,64

Answer 2

пусть на третью машину погрузили х ,тогда на первую 1,3х,а на вторую 1,5 х Весь груз 13,3 Составим уравнение
х+1,3х+1,5х=13,3
3,8х=13,3
х=13,3:3,8
х= 3,5 т погрузили на третью машину
3,5*1,3= 4,55 т погрузили на первую машину
3,5*1,5= 5,25 т погрузили на вторую машину
проверка 3,5+4,55+5,25=13,3 тоны всего 

Answer 3

Calculation of Fuel Consumption for an Engine

To calculate the fuel consumption for an engine, we need to know the fuel consumption rate per hour and the duration of operation. In this case, we have the following information:

- Engine: 1486 - Duration: 7.5 hours - Fuel consumption: 111 liters

We can use this information to find the fuel consumption rate per hour for the engine:

Fuel consumption rate per hour = Fuel consumption / Duration

Substituting the given values, we get:

Fuel consumption rate per hour = 111 liters / 7.5 hours

To find the fuel consumption for a different duration, we can use the fuel consumption rate per hour and the new duration. In this case, we have the following information:

- Engine: 1486 - Duration: 1.8 hours

To calculate the fuel consumption, we can use the following formula:

Fuel consumption = Fuel consumption rate per hour * Duration

Substituting the given values, we get:

Fuel consumption = (111 liters / 7.5 hours) * 1.8 hours

Let's calculate the fuel consumption for the engine for a duration of 1.8 hours.

Calculation of Distribution of Goods among Three Cars

To calculate the distribution of goods among three cars, we need to know the total mass of the goods and the ratios of distribution. In this case, we have the following information:

- Total mass of goods: 1490 tons - Distribution ratios: - First car: 1.3 times more than the third car - Second car: 1.5 times more than the third car

Let's assume the mass of goods loaded on the third car is x tons.

According to the given information, the mass of goods loaded on the first car is 1.3 times more than the mass loaded on the third car, and the mass of goods loaded on the second car is 1.5 times more than the mass loaded on the third car.

Based on these ratios, we can write the following equations:

- Mass loaded on the first car: 1.3x - Mass loaded on the second car: 1.5x - Mass loaded on the third car: x

The sum of the masses loaded on the three cars should be equal to the total mass of goods:

1.3x + 1.5x + x = 1490

Simplifying the equation, we get:

3.8x = 1490

To find the value of x, we can divide both sides of the equation by 3.8:

x = 1490 / 3.8

Now, we can calculate the mass of goods loaded on each car by substituting the value of x into the equations:

- Mass loaded on the first car: 1.3 * (1490 / 3.8) tons - Mass loaded on the second car: 1.5 * (1490 / 3.8) tons - Mass loaded on the third car: (1490 / 3.8) tons

Let's calculate the mass of goods loaded on each car.