Problema Solution
A picture is 5 inches by 7 inches. There is a frame around the picture that is of uniform width. The area of the frame and the picture combined is 72 in2. How wide is the picture frame?
Answer provided by our tutors
Let 'w' represent the width of the frame, w>0.
If the frame of the picture is 5 inches by 7 inches then the total area, together with the frame, will be:
(5 + 2w)(7 + 2w) = 72
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click here to see the equation solved for w
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w = 1.27 in approximately
The width of the frame is 1.27 inches.