Question

По одинаковой цене купили два куска материи. За 1 кусок заплатили 4200 тенге, за 2 кусок 1800 тг. В 1 куске было на 40м больше ткани, чем во 2. Сколько метров ткани в каждом куске? Помогите плис!!! ​

Answer 1

Ответ:

В первом куске было 70 метров ткани, а во втором 30 метров.  

Пошаговое объяснение:

4200 - 1800 = 2400 тенге-на сколько больше рублей заплатили за первый кусок материи, чем за второй.

240 :40 = 6 тенге- стоимость одного метра

4200 :6 = 70 метров-метраж ткани в первом куске,

1800 : 60 = 30 метров.

Answer 2

To solve this problem, let's assign variables to the unknowns. Let's say the number of meters of fabric in the first piece is 'x' and the number of meters in the second piece is 'y'.

According to the given information, the price of the first piece is 4200 tenge and the price of the second piece is 1800 tenge. We can set up the following equations:

Equation 1: x + y = 4200 (since the total price of the two pieces is 4200 tenge) Equation 2: x - y = 40 (since the first piece has 40 meters more fabric than the second piece)

To solve this system of equations, we can use the method of substitution or elimination. Let's use the method of elimination:

Adding Equation 1 and Equation 2, we get: 2x = 4240 x = 2120

Substituting the value of x into Equation 1, we can find y: 2120 + y = 4200 y = 2080

Therefore, the first piece of fabric has 2120 meters and the second piece has 2080 meters.

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