Question

Маса 10 кубиків дорівное масі чотирьох кульок та трьох крапель Крапля в три рази легша за кульку Скільки кубиків треба взяти, щоб іх маса дорівновала масі однієї кульки? Il​

Answer 1

Ответ:

a) 2 кубики

Пошаговое объяснение:

10a=4b+3c

b=3c

5b=10a

b=10a/5

b=2a

Answer 2

I used Google Translate to translate your message from Ukrainian to English. Here is the translation:

Answer in detail. The mass of 10 cubes is equal to the mass of four balls and three drops. A drop is three times lighter than a ball. How many cubes do you need to take so that their mass is equal to the mass of one ball? Il

This is a math problem that can be solved by using algebra. Let x be the mass of one cube, y be the mass of one ball, and z be the mass of one drop. Then, we have the following equations:

10x = 4y + 3z (1) z = y/3 (2)

Substituting (2) into (1), we get:

10x = 4y + y = 5y (3)

Solving for x, we get:

x = y/2 (4)

This means that one cube has half the mass of one ball. Therefore, to make the mass of the cubes equal to the mass of one ball, we need to take two cubes. The answer is two.