SOLUTION: The ratio of the weight of copper to the weight of zinc in a U.S. penny is 1/39. If 50 kg of zinc is being turned into pennies, how much copper is needed?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: The ratio of the weight of copper to the weight of zinc in a U.S. penny is 1/39. If 50 kg of zinc is being turned into pennies, how much copper is needed?      Log On


   

Question 202772: The ratio of the weight of copper to the weight of zinc in a U.S. penny is 1/39. If 50 kg of zinc is being turned into pennies, how much copper is needed?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
1/39:x/50
39x=50
x=1.28kg