Question

Рибалка упіймав рибу. Її хвіст має масу 1 кг, а голова як хвіст і половина тулуба. Тулуб має масу, як голова і хвіст. Яка маса рибини?

Answer 1

Тулуб - х
голова=1+0.5х
тулуб =1+1+0.5х=2+0.5х
х=2+0.5х
х-0.5х=2
0.5х=2
х=2:0.5
х=4 кг - тулуб
голова = 1+0.5*4=3 кг
1+4+3=8 кг

Answer 2

Calculating the Fish's Weight

To calculate the fish's weight, we can use the given information about the mass of its tail, head, and half of its body.

The total weight of the fish can be calculated as follows: - Tail mass: 1 kg - Head mass: Tail mass + Half of the body mass - Body mass: Head mass + Tail mass

Let's calculate the fish's weight based on this information.

Calculation

- Tail mass: 1 kg - Head mass: Tail mass + (1/2) * Body mass - Body mass: Head mass + Tail mass

Using the given information, we can calculate the fish's weight.

Solution

- Tail mass: 1 kg - Head mass: 1 kg + (1/2) * Body mass - Body mass: 1 kg + Tail mass

Now, we can solve for the body mass.

1 kg + (1/2) * Body mass = 1 kg + 1 kg (1/2) * Body mass = 1 kg Body mass = 2 kg

So, the mass of the fish is 2 kg.