Question

An alloy contains copper and zinc in the ratio of 2:11. find the weight of copper in alloy if it has 28.6 grams of zinc​

Answer 1

Answer:

5.2g

Step-by-step explanation:

Let the mass of zinc in alloy be 11x and let the mass of copper be 2x.

Given mass of zinc =28.6 g

Therefore,

11x= 28.6

x=28.6/11

x=2.6

Now,

Mass of copper=2x= 2*2.6 = 5.2g

Answer 2

ANSWER:

5.2 grams or 5 1/5  grams

Step-by-step explanation:

Let zinc be 11x.

Let copper be 2x.

Therefore 11x= 28.6 grams

Therefore x= 28.6/11= 2.6

Therefore copper= 2.6 x 2 = 5.2 grams or 5 1/5 grams