Question

Для приготовления бетонной смеси 2 части цемента смешивают с 3 частями песка. Сколько килограммов песка и сколько килограммов цемента нужно для приготовления 60 кг бетонной смеси?

Answer 1

Ответ:

24 кг цемента

36 кг песка

Пошаговое объяснение:

2х+3х=60

5х=60

х=12

2х=24 кг цемента

3х=36 кг песка

Answer 2

Calculating Concrete Mix

To calculate the amount of sand and cement needed to prepare 60 kg of concrete mix, we can use the given ratio of 2 parts cement to 3 parts sand.

Given Ratio: - Cement : Sand = 2 : 3

Calculating the Amounts

Let's calculate the amounts of sand and cement needed for 60 kg of concrete mix.

Step 1: Finding the Total Parts - The total parts in the ratio are 2 (cement) + 3 (sand) = 5 parts.

Step 2: Calculating the Parts for 60 kg of Concrete Mix - For 60 kg of concrete mix, we can calculate the parts as follows: - Cement parts = (2 / 5) * 60 kg - Sand parts = (3 / 5) * 60 kg

Step 3: Converting Parts to Kilograms - Now, we can convert the parts to kilograms using the given ratio.

Calculation Results

Cement: - Cement parts = (2 / 5) * 60 kg = 24 kg - 24 kilograms of cement are needed for 60 kg of concrete mix.

Sand: - Sand parts = (3 / 5) * 60 kg = 36 kg - 36 kilograms of sand are needed for 60 kg of concrete mix.

So, to prepare 60 kg of concrete mix with a ratio of 2 parts cement to 3 parts sand, you will need 24 kilograms of cement and 36 kilograms of sand.