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Mathematics 16 Online
OpenStudy (anonymous):

a picture that is 5 inches by 7 inches is placed in a frame of uniform width. framing the picture increases the area by 20 square inches. find the width of the frame.

hartnn (hartnn):

area of picture = 5*7 =...?

OpenStudy (anonymous):

35

hartnn (hartnn):

area of frame +pic = 35+20 = 55 square inches. now you only need dimensions of frame let the width of frame be 'x' |dw:1363013048254:dw| so the dimensions of frame+pic are ...?

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