SOLUTION: Given: If schools close, then workers will lose their jobs If we save fuel, then workers will not lose their jobs We save fuel or there is an energy crisis Schools will close

Algebra ->  Proofs -> SOLUTION: Given: If schools close, then workers will lose their jobs If we save fuel, then workers will not lose their jobs We save fuel or there is an energy crisis Schools will close       Log On


   

Question 551411: Given:
If schools close, then workers will lose their jobs
If we save fuel, then workers will not lose their jobs
We save fuel or there is an energy crisis
Schools will close
PROVE: There is an energy crisis
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
since schools will close per statement 4, then workers will lose their jobs per the statement 1.
the contra-positive to statement 2 is:
if workers lose their jobs then we did not save fuel.
since we did not save fuel, then there must be an energy crisis per statement 3.