SOLUTION: The length of a rectangle is 10 feet longer than it is wide. If each side is increased 10 feet, then the area is multiplied by 4. What was the size of the original rectangle?

Question 1162564: The length of a rectangle is 10 feet longer than it is wide. If each side is increased 10 feet, then the area is multiplied by 4. What was the size of the original rectangle?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Dimensions w+10 and w, originally

Original area, w(w+10)

The Increase:

If this much is clear to you then you know how to continue.
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