Question

German silver is an alloy composed of nickel, zinc, and copper in a 3:4:13 ratio. how many kilograms of each metal are needed to make 4kg of this alloy

Answer 1

0.6 kg Ni

0.8 kg Zn

2.6 kg Cu

Explanation:

If 3x is the amount of nickel, 4x is the amount of zinc, 13x is the amount of copper, and the total amount is 4 kg, then:

3x + 4x + 13x = 4

20x = 4

x = 0.2

Therefore, the amount of nickel is 3x = 0.6 kg. The amount of zinc is 4x = 0.8 kg. And the amount of copper is 13x = 2.6 kg.