Question

С одного луга собралт 9,8 тонн сена , с другого в 2 раза меньше,чем с первого,а с третьего на 1,4 тонн сена больше , чемс первого . Сколько всего сена собрали с трех лугов.

Answer 1

1 9,8:2=4,9т-со 2 уч
2 9,8+1,4=11,2т-с 3 уч
3 9,8+4,9+11,2=25,9т -с трех уч

Answer 2

Calculation of Total Hay Collected from Three Meadows

To calculate the total amount of hay collected from three meadows, we need to consider the amounts collected from each meadow individually and then sum them up.

Let's assign variables to represent the amount of hay collected from each meadow:

- Amount of hay collected from the first meadow: x (in tons) - Amount of hay collected from the second meadow: y (in tons) - Amount of hay collected from the third meadow: z (in tons)

According to the given information:

- The first meadow collected 9.8 tons of hay. - The second meadow collected 2 times less hay than the first meadow. - The third meadow collected 1.4 tons more hay than the first meadow.

Based on this information, we can set up the following equations:

1. The amount of hay collected from the second meadow is 2 times less than the amount collected from the first meadow: ``` y = x/2 ```

2. The amount of hay collected from the third meadow is 1.4 tons more than the amount collected from the first meadow: ``` z = x + 1.4 ```

To find the total amount of hay collected from all three meadows, we need to sum up the amounts from each meadow:

Total hay collected = x + y + z

Now, let's solve the equations to find the values of x, y, and z.

From equation (1), we can substitute the value of y in terms of x: ``` y = x/2 ```

Substituting this value of y in equation (3): ``` Total hay collected = x + x/2 + (x + 1.4) ```

Simplifying the equation: ``` Total hay collected = 2x + x/2 + 1.4 ```

Combining like terms: ``` Total hay collected = (4x + x)/2 + 1.4 Total hay collected = 5x/2 + 1.4 ```

Now, we can substitute the value of x with the amount of hay collected from the first meadow (9.8 tons): ``` Total hay collected = 5(9.8)/2 + 1.4 ```

Calculating the total hay collected: ``` Total hay collected = 49/2 + 1.4 Total hay collected = 24.5 + 1.4 Total hay collected = 25.9 tons ```

Therefore, the total amount of hay collected from the three meadows is 25.9 tons.

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