Question 1057788: As of 2012, the movies with the highest worldwide box-office sales are Avatar, Titanic, and The Avengers. The total box-office sales for all three movies were $6.5 billion. The box-office sales for Avatar were $0.2 billion less than twice the box-office sales for The Avengers. The box-office sales for the Titanic were $0.6 billion less than the box-office sales for Avatar. Determine the box-office sales for each of these movies.
Answer by jorel555(1290)   (Show Source):
You can put this solution on YOUR website! Let av be the figure for The Avengers. Then Avatar would be 2av-.2, and Titanic would be 2av-.2-.6, or 2av-.8. So:
av+2av-.2+2av-.8=6.5
5av-1=6.5
5av=7.5
av=1.5
2av-.2=2.8
2av-.8=2.2
The Avengers earned 1.5 bil., Avatar earned 2.8 bil., and Titanic earned 2.2 bil. . ☺☺☺☺
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