SOLUTION: Hi and thanks for answering my question! One pair of opposite sides of a rectangle increased in length by 25%. By what percent must the other pair of sides decrease if the area

Question 974997: Hi and thanks for answering my question!
One pair of opposite sides of a rectangle increased in length by 25%. By what percent must the other pair of sides decrease if the area of the rectangle remains the same?
Please include a brief explanation too, thank you!
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Dimensions x and y of the original rectangle.
xy=A for area.

, simpler to think in factors, first.

----------------a decrease in the original y dimension of 20%.
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