SOLUTION: A stock increased 700% over the past 6 years.this was an increase of$1400.what was the value of stock 6 years ago?what is the value of stock now?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A stock increased 700% over the past 6 years.this was an increase of$1400.what was the value of stock 6 years ago?what is the value of stock now?      Log On


   

Question 1050103: A stock increased 700% over the past 6 years.this was an increase of$1400.what was the value of stock 6 years ago?what is the value of stock now?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = the value of the stock 6 yrs ago
+%28+700%2F100+%29%2Ax+=+1400+
( note that the actual value after 6 yrs is +x+%2B+%28+700%2F100+%29%2Ax+,
but they give you just the amount of the increase )
-----------------------------------
+7x+=+1400+
+x+=+200+
The value of the stock 6 yrs ago was $200
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The value of the stock now is:
+x+%2B+%28+700%2F100+%29%2Ax+
+200+%2B+7%2A200+=+1600+
$1,600