Iron makes up 90% of the alloy, the rest is nickel. How many kilograms of iron and how many kilograms

Iron makes up 90% of the alloy, the rest is nickel. How many kilograms of iron and how many kilograms of nickel are contained in the 51kg alloy?

By the condition of the problem, an alloy of iron and nickel is given, the mass of which is 51 kilograms.

The entire mass of the alloy is 100%.

It is known that the alloy is 90% iron.

Consequently, the mass of nickel is 10% of the mass of the alloy:

100% – 90% = 10%.

Let’s calculate the mass of iron in this alloy:

51 * 90% = 51 * 0.9 = 45.9 kilograms.

Let’s calculate what the mass of nickel is equal to:

51 * 10% = 51 * 0.1 = 5.1 kilograms.

Answer: the mass of iron in the alloy is 45.9 kilograms, and the mass of nickel is 5.1 kilograms.