SOLUTION: A photograph of a child has a width 2 inches longer than length. The proud parents decide the photo is cute enough that they want a larger version. The picture is made bigger by

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Question 342412: A photograph of a child has a width 2 inches longer than length. The proud parents decide the photo is cute enough that they want a larger version. The picture is made bigger by increasing both its length and its width by 2 inches, it's area increases by 20 SQUARE inches. What are the dimensions of the original picture? Use the 5-step method.
I don't even know where to start and I need help now!!!
Thank you so much!
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: The area of the original photo is A=w%28w%2B2%29 and the area of the new photo is A%2B20=%28w%2B2%29%28w%2B4%29. Solve for 'A' in the second equation to get A=%28w%2B2%29%28w%2B4%29-20. Now set the right sides of the two equations equal to each other to get w%28w%2B2%29=%28w%2B2%29%28w%2B4%29-20


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