SOLUTION: 1/5 of the three hundred tickets to the school play have been sold. What percent of the tickets have not been sold yet?

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Question 177440: 1/5 of the three hundred tickets to the school play have been sold. What percent of the tickets have not been sold yet?
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
if 1/5 of the tickets HAVE been sold then 4/5 havent been sold
:
4/5=.8 to convert to a percentage we multiply by 100: so .8(100)=80% havent been sold