Question

Вычислить(5/18 - 7/12 * 0,5) : 5/18 - 2/3=задача:С трех участков собрали 238 т картофеля. С первого участка собрали в 1,8 раза больше, чем с третьего, с со второго на 10 тонн больше, чем с третьего. Сколько тонн картофеля собрали с каждого участка?Помогите решить, ничего не получается!!!!!!

Answer 1

(5/18 - 7/12 * 0,5) : 5/18 - 2/3=-1/24: 5/18 - 2/3=-3/20- 2/3=-9/60- 40/60=-49/60


пусть х - с 3 поля
1,8х - с 1 поля
х+10 - со 2 поля

х+1,8х+х+10=238
3,8х=238-10
3,8х=228
х=228/3,8
х=60 т  с 3 поля
1,8*60=108 т  с 1 поля
60+10=70 т со 2 поля

Answer 2

Нехай з 3 мішка зібрали х тонн, з 1 1.8х , з 2 (х+10). Всього зібрали 238т.
  Складаємо рівняння:
х+1.8х+х+10=238
3.8х=238-10
3.8х=228
х=228:3.8
х=60
Отже з 3 мішка зібрали 60 т, з 1 1.8*60=108 т, з 2 60+10=70 т

Answer 3

Problem Statement

The problem states that there are three plots of land from which a total of 238 tons of potatoes were harvested. The first plot yielded 1.8 times more potatoes than the third plot, and the second plot yielded 10 tons more than the third plot. The task is to determine how many tons of potatoes were harvested from each plot.

Solution

Let's denote the amount of potatoes harvested from the first, second, and third plots as x, y, and z, respectively. We can set up the following equations based on the given information:

Equation 1: x + y + z = 238 (the total amount of potatoes harvested) Equation 2: x = 1.8z (the first plot yielded 1.8 times more potatoes than the third plot) Equation 3: y = z + 10 (the second plot yielded 10 tons more than the third plot)

To solve this system of equations, we can substitute the values of x and y from Equations 2 and 3 into Equation 1:

1.8z + (z + 10) + z = 238 3.8z + 10 = 238 3.8z = 228 z = 228 / 3.8 z = 60

Now that we have the value of z, we can substitute it back into Equations 2 and 3 to find the values of x and y:

x = 1.8 * 60 = 108 y = 60 + 10 = 70

Therefore, the amount of potatoes harvested from each plot is as follows: - First plot: 108 tons - Second plot: 70 tons - Third plot: 60 tons

I hope this helps! Let me know if you have any further questions.