SOLUTION: An alloy of tin and copper has 6lbs of copper for every 2lbs of tin.If 200 pounds of an alloy are made,how many pounds of tin are required?

Algebra ->  Test -> SOLUTION: An alloy of tin and copper has 6lbs of copper for every 2lbs of tin.If 200 pounds of an alloy are made,how many pounds of tin are required?      Log On


   

Question 1036649: An alloy of tin and copper has 6lbs of copper for every 2lbs of tin.If 200 pounds of an alloy are made,how many pounds of tin are required?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
(1) +c%2Ft+=+6%2F2+
(2) +c+%2B+t+=+200+
-------------------
(1) +c+=+%286%2F2%29%2At+
(1) +c+=+3t+
---------------
(2) +c+%2B+t+=+200+
(2) +3t+%2B+t+=+200+
(2) +4t+=+200+
(2) +t+=+50+
50 pounds of tin are needed
-------------------------
check:
(1) +c+=+3t+
(1) +c+=+3%2A50+
(1) +c+=+150+
------------------
(1) +c%2Ft+=+6%2F2+
(1) +c%2Ft+=+3+
(1) +150%2F50+=+3+
(1) +3+=+3+
OK