SOLUTION: In tryouts for a school play, 30% of the participants were eliminated the first week. Of those remaining, 20% were chosen. If 7 were chosen, how many tried out?

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Question 454863: In tryouts for a school play, 30% of the participants were eliminated the first week. Of those remaining, 20% were chosen. If 7 were chosen, how many tried out?
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
Let x=number that tried out.
(x-.3x)*.2=7
.2*.7x=7
.14x=7
x=50
.
Ed