Question

Булочка и бублик стоят 14 рублей,а булочка и 3 бублика стоят 32 рубля. сколько стоит бублик?

Answer 1

Пусть х рублей-стоят булочки, а н рублей стоят библики, тошда составис систему уравнений

 

x+y=12,     x=12-y,            x=12-y  x=2

x+3y=32   12-y+3y=32    2y=20    y=10

Ответ:10 рублей стрит один бублик.

Answer 2

Calculation of the Cost of a Bun

To calculate the cost of a bun, we can set up a system of equations based on the given information. Let's assume the cost of a bun is represented by x.

According to the information provided, a bun and a bagel together cost 14 rubles. This can be expressed as:

x + y = 14 (Equation 1)

where y represents the cost of a bagel.

It is also mentioned that a bun and three bagels together cost 32 rubles. This can be expressed as:

x + 3y = 32 (Equation 2)

To solve this system of equations, we can use substitution or elimination method. Let's use the elimination method to find the value of x and y.

Multiplying Equation 1 by 3, we get:

3x + 3y = 42 (Equation 3)

Subtracting Equation 2 from Equation 3, we have:

(3x + 3y) - (x + 3y) = 42 - 32

Simplifying, we get:

2x = 10

Dividing both sides by 2, we find:

x = 5

Now that we have the value of x, we can substitute it back into Equation 1 to find the value of y:

5 + y = 14

Subtracting 5 from both sides, we get:

y = 9

Therefore, the cost of a bagel is 9 rubles.

Please note that the given information does not provide any context or additional details about the specific types of buns or bagels being referred to. The calculations are based solely on the equations provided.