Question

В пяти маленьких коробках на 12 пирожных меньше чем в 2 больших.Сколько пирожных во всех маленьких коробках? И сколько во всех больших если в маленькой коробке в 3 раза меньше пирожных чем в большой?ПОМОГИТЕЕ!!!!

Answer 1

Пусть в маленькой коробке х пирожных, а в большой у. Тогда:

5х+12=2у

3х=у

Подставим второе уравнение в первое

5х+12=2*3х

5х+12=6х

х=12 (пирожных в 1 маленькой коробке)

5х=60 (пирожных во всех маленьких коробках)

у=3х=36 (пирожных в 1 большой коробке)

2у=72 (пирожных во всех больших коробках)

Answer 2

Problem Analysis

We have five small boxes and two large boxes. The number of pastries in the five small boxes is 12 less than the number of pastries in the two large boxes. We need to find the number of pastries in all the small boxes and the number of pastries in all the large boxes.

Solution

Let's assume the number of pastries in each small box is x and the number of pastries in each large box is y.

According to the given information, the number of pastries in the five small boxes is 12 less than the number of pastries in the two large boxes. Mathematically, we can represent this as:

5x = 2y - 12

To find the value of x, we can rearrange the equation as:

5x + 12 = 2y

Now, we need to find the values of x and y.

Calculation

To solve the equation, we need another equation. Let's use the information that the number of pastries in a small box is 3 times less than the number of pastries in a large box. Mathematically, we can represent this as:

x = 3y

Now, we have two equations:

5x + 12 = 2y (Equation 1) x = 3y (Equation 2)

We can substitute Equation 2 into Equation 1 to solve for y:

5(3y) + 12 = 2y

Simplifying the equation:

15y + 12 = 2y

Subtracting 2y from both sides:

15y - 2y + 12 = 0

Combining like terms:

13y + 12 = 0

Subtracting 12 from both sides:

13y = -12

Dividing both sides by 13:

y = -12/13

Now, we have the value of y. We can substitute this value back into Equation 2 to find the value of x:

x = 3(-12/13)

Simplifying the equation:

x = -36/13

Therefore, the number of pastries in each small box is -36/13 and the number of pastries in each large box is -12/13.

Answer

The number of pastries in all the small boxes is -36/13 and the number of pastries in all the large boxes is -12/13.

Please note that the solution obtained for the number of pastries may not be a valid or meaningful answer, as it results in negative fractions. It is possible that there is an error in the given information or in the calculations.