Question

Точка C делит отрезок AB на два отрезка АС и СВ. Длина отрезка АС составляет 0,65 длины отрезка СВ. Найдите длины отрезков СВ и АВ, если АС = 3,9 см. Помогите пожалуйста

Answer 1

Ответ:

ответ на фото)))))

Пошаговое объяснение:

Answer 2

Ответ:

6см АВ

2.1см СВ

..........

Answer 3

Problem Analysis

We are given an interval AB, and point C divides the interval into two segments, AC and CB. The length of segment AC is 0.65 times the length of segment CB. We need to find the lengths of segments CB and AB, given that AC = 3.9 cm.

Solution

Let's assume the length of segment CB is x cm. According to the given information, the length of segment AC is 0.65 times the length of segment CB. Therefore, we can write the equation:

AC = 0.65 * CB

Substituting the given value of AC as 3.9 cm, we can solve for CB:

3.9 = 0.65 * CB

To find CB, we divide both sides of the equation by 0.65:

CB = 3.9 / 0.65

Now, we can calculate the value of CB:

CB = 6 cm

To find the length of segment AB, we can add the lengths of segments AC and CB:

AB = AC + CB

Substituting the given value of AC as 3.9 cm and CB as 6 cm, we can calculate the value of AB:

AB = 3.9 + 6

AB = 9.9 cm

Therefore, the length of segment CB is 6 cm and the length of segment AB is 9.9 cm.

Answer

The length of segment CB is 6 cm and the length of segment AB is 9.9 cm.