Question

В трех рулонах 180 м ткани. в первом и во втором 120 м, а во втором и третье 130 м ткани.сколько метров ткани в каждом рулонп?

Answer 1

1) 180 - 120 = 60(м) ткани в третьем рулоне
2) 130 - 60 = 70(м) в первом рулоне
3) 120 - 70 = 50(м) во втором рулоне
      Ответ: в 1 рулоне - 70 м., во втором - 50 м. , в третьем - 60 м. ткани.

Answer 2

Calculating the Length of Fabric in Each Roll

To calculate the length of fabric in each roll, we can use the given information. Let's denote the length of fabric in the first roll as x, in the second roll as y, and in the third roll as z. We are given the following information: - In the first and second rolls, there are 120 meters of fabric. - In the second and third rolls, there are 130 meters of fabric.

We can set up the following equations based on the given information: 1. x + y = 120 (Equation 1) 2. y + z = 130 (Equation 2)

To solve for the lengths of fabric in each roll, we can use these equations.

Solving for the Length of Fabric in Each Roll

Using the given equations, we can solve for the lengths of fabric in each roll.

From Equation 1, we can express x in terms of y as x = 120 - y.

Substituting this expression for x into Equation 2, we get (120 - y) + y = 130.

Solving for y, we find y = 10.

Substituting y = 10 back into Equation 1, we find x = 110.

So, the lengths of fabric in each roll are: - First roll: 110 meters - Second roll: 10 meters - Third roll: 120 meters

This satisfies the given conditions.

Conclusion

The lengths of fabric in each roll are: - First roll: 110 meters - Second roll: 10 meters - Third roll: 120 meters