Question

Сплав содержит 18% меди. Сколько килограммов сплава надо взять,чтобы он содержал 54 кг меди?

Answer 1

54кг-18%
x кг-100%
x=54*100/18
x=5400/18
x=300
Ответ: Нужно взять 300 кг сплава

Answer 2

Calculating the Amount of Alloy Needed

To calculate the amount of alloy needed to contain 54 kg of copper when the alloy contains 18% copper, we can use the following formula:

Amount of alloy = (Amount of copper required) / (Percentage of copper in the alloy)

Using the given information: - Amount of copper required = 54 kg - Percentage of copper in the alloy = 18%

We can now calculate the amount of alloy needed using the formula.

Calculation

Amount of alloy = 54 kg / 18% Amount of alloy = 54 kg / 0.18 Amount of alloy = 300 kg

So, 300 kilograms of the alloy need to be taken to contain 54 kg of copper.

This information is based on the calculation using the provided percentage and amount of copper required