SOLUTION: In 1985, the Lincoln Memorial was 1 1/2 times as old as the Jefferson Memorial. If the Lincoln Memorial was built 21 years before the Jefferson Memorial, give the year each memori

SOLUTION: In 1985, the Lincoln Memorial was 1 1/2 times as old as the Jefferson Memorial. If the Lincoln Memorial was built 21 years before the Jefferson Memorial, give the year each memori

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Question 107010: In 1985, the Lincoln Memorial was 1 1/2 times as old as the Jefferson Memorial. If the Lincoln Memorial was built 21 years before the Jefferson Memorial, give the year each memorial was built.
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
let x="year of Lincoln", so x+21="year of Jefferson" ... 1985-x=(3/2)(1985-(x+21))
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