Question

Помогите решить задачу масса детеныша моржа в 9 раз меньше взрослого моржа.Какова масса взрослого моржа если масса детеныша и моржа вместе равна 0,9.

Answer 1

0,9 тонны=900 кг
Пусть масса детеныша х,тогда масса взрослого 9х.Уравнение:
х+9х=900
10х=900
х=90 кг масса детеныша.
Тогда масса взрослого 0,9*90=810 кг 

Answer 2

Problem Analysis

We are given that the mass of a baby walrus (or walrus calf) is 9 times smaller than the mass of an adult walrus. The combined mass of the baby walrus and the adult walrus is 0.9. We need to find the mass of the adult walrus.

Solution

Let's assume the mass of the adult walrus is x. According to the problem, the mass of the baby walrus is 9 times smaller, so its mass is x/9.

The combined mass of the baby walrus and the adult walrus is given as 0.9. Therefore, we can write the equation:

x + x/9 = 0.9

To solve this equation, we can multiply through by 9 to eliminate the fraction:

9x + x = 8.1

Combining like terms:

10x = 8.1

Dividing both sides by 10:

x = 0.81

Therefore, the mass of the adult walrus is 0.81.

Answer

The mass of the adult walrus is 0.81.