Question

В 1 базе неизвестно сколько машин во 2 базе неизвестно но известно что на 18м больше чем в 1 в 3 базе неизвесно но известно что в 2 раза больше 2 всего 606 машин решенте через x за 7 класс

Answer 1

1база- х машин
2база- (х+18) машин
3база- 2(х+18)машин

х+(х+18)+2(х+18)=606
х+х+18+2х+36=606
х+х+2х=606-18-36
4х=552
х=138 
138 машин на 1 базе
138+18=156 машин на 2 базе
156*2=312 машин на 3 базе

Answer 2

Problem Analysis

To solve this problem, we need to find the number of cars in each base. We know that the total number of cars in all three bases is 606. We can represent the number of cars in each base as variables and then create equations based on the given information to solve for the variables.

Let's represent the number of cars in the first base as x, the number of cars in the second base as y, and the number of cars in the third base as z.

Equations

We can create the following equations based on the given information: 1. The total number of cars in all three bases is 606: - This can be represented as: x + y + z = 606

2. The number of cars in the second base is unknown, but it is known that it is 18 more than the number of cars in the first base: - This can be represented as: y = x + 18

3. The number of cars in the third base is unknown, but it is known that it is twice the number of cars in the second base: - This can be represented as: z = 2y

Solution

We can solve these equations to find the values of x, y, and z.

First, we can use the equation y = x + 18 to express y in terms of x: - y = x + 18

Then, we can use the equation z = 2y to express z in terms of x: - z = 2(x + 18)

Finally, we can substitute the expressions for y and z into the equation x + y + z = 606 and solve for x.

Let's proceed with the calculations.