Question

an alloy containing Copper and Zinc in ratio of 2 ratio 11 find the weight of copper in the alloy if it has 28.6 gram of zinc

Answer 1

2/11=cu/28.6

=cu=28.6*2/11

=5.2gm

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