an alloy contains copper and zinc in the ratio 7:3 .if it contains 12.6 g of copper,how much does this alloy weigh?
Answers
Answered by
126
Hi friend
-------------
Your answer
--------------------
In an alloy,
Copper : Zinc = 7 : 3
Weight of Copper = 12.6 grams
Now,
---------
Total parts= (7 + 3) = 10
Let the weight of the alloy be x.
Then,
7/10 × x = 12.6
=> x = (12.6 × 10)/7
=> x = 18 grams
∴ Weight of the alloy is 18 grams.
HOPE IT HELPS
-------------
Your answer
--------------------
In an alloy,
Copper : Zinc = 7 : 3
Weight of Copper = 12.6 grams
Now,
---------
Total parts= (7 + 3) = 10
Let the weight of the alloy be x.
Then,
7/10 × x = 12.6
=> x = (12.6 × 10)/7
=> x = 18 grams
∴ Weight of the alloy is 18 grams.
HOPE IT HELPS
Answered by
33
Answer:
copper:zinc =7:3
weight of copper is 12.6g
total weight 7+3 = 10
let the alloy be x
7/10 × x = 12.6
x=18g
Similar questions