Question

Булочка и стакан молока вместе стоят 14 руб.,а 3 булочки и 2 стакана молока стоят33 руб.Сколько стоит стакан молока?

Answer 1

1)14+14=28 - стоят 2 булочки и 2 стакана молока
2)33-28=5 - стоит 1 булочка
3)14-5=9 - стоит стакан молока

Answer 2

1)14+14=28руб - стоят 2 булочки и 2 стакана молока

2)33-28=5руб - стоит 1 булочка

3)14-5=9 руб - стоит стакан молока

Ответ: 9 рублей

Answer 3

Problem Analysis

We are given the following information: - A bun and a glass of milk together cost 14 rubles. - Three buns and two glasses of milk together cost 33 rubles.

We need to find the cost of one glass of milk.

Solution

Let's assume the cost of one bun is x rubles and the cost of one glass of milk is y rubles.

From the given information, we can form the following equations:

Equation 1: x + y = 14 (The cost of one bun and one glass of milk is 14 rubles)

Equation 2: 3x + 2y = 33 (The cost of three buns and two glasses of milk is 33 rubles)

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

From Equation 1, we can express x in terms of y: x = 14 - y

Substituting this value of x into Equation 2, we get: 3(14 - y) + 2y = 33 42 - 3y + 2y = 33 42 - y = 33 -y = 33 - 42 -y = -9 y = 9

Therefore, the cost of one glass of milk is 9 rubles.

Answer

The cost of one glass of milk is 9 rubles.