SOLUTION: an alloy of gold,silverand bronze contain 90% bronze, 7% gold and3% silver.a second alloy of bronze and silver only is melted with the first and mixture contain 85% of bronze,5% of
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Question 970459: an alloy of gold,silverand bronze contain 90% bronze, 7% gold and3% silver.a second alloy of bronze and silver only is melted with the first and mixture contain 85% of bronze,5% of gold,10% of silver find the percentage of bronze in second alloy?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
I will say that the quantity of metal that I
start out with is 100 units ( the units don't
matter -I can make them up )
----------------------------
That means I start with 90 units of bronze,
7 units of gold, and 3 units of silver
--------------------------------
Now I will say there are units of the
2nd mixture where could be any number
-------------------------------------------
In the 2nd mixture, there is:
units of bronze
units pf gold
units of silver
------------------------
The amount of gold did not change, so
units of final mixture
---------------
units of bronze
------------------
units of silver
------------------
I started with 90 units of bronze, and
ended up with 119, so there were
units of bronze
in the 2nd mixture
units in 2nd mixture
-------------------------
There is 72.5% bronze in the 2nd mixture
-------------------------------------
check the answer:
Silver:
-------------------
correct, because no additional gold was added
Hope you can follow this and it makes sense
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