SOLUTION: if 160 kilograms of an alloy contain 76.8 kilograms of copper, what percent of th alloy is copper?

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Question 44390: if 160 kilograms of an alloy contain 76.8 kilograms of copper, what percent of th alloy is copper?
Answer by adamchapman(301) About Me  (Show Source):
You can put this solution on YOUR website!
Find the proportion of copper out of the whole mixture:
76.8%2F100=0.768
The percentage of copper as a decimal is 0.768. T give this in the form of a percentage, multiply by 100 and stick a % sign on the end. This will give the percentage of copper is 76.8%
I hope this helps.
P.S. I am trying to start up my own homework help website. I would be extremely grateful if you would e-mail me some feedback on the help you received to adam.chapman@student.manchester.ac.uk