SOLUTION: A picture that measures 15 inches by 12 inches is placed in a frame of uniform width. If the area of the frame and picture together is 378 square inches what is the width of the fr

Algebra ->  Rectangles -> SOLUTION: A picture that measures 15 inches by 12 inches is placed in a frame of uniform width. If the area of the frame and picture together is 378 square inches what is the width of the fr      Log On


   

Question 1166188: A picture that measures 15 inches by 12 inches is placed in a frame of uniform width. If the area of the frame and picture together is 378 square inches what is the width of the frame?
Answer by josgarithmetic(39613) About Me  (Show Source):
You can put this solution on YOUR website!
The uniform width of the frame, x
%282x%2B15%29%282x%2B12%29=378
A few different ways to solve are possible.
(Notice, the two factors on the left differ by 3.)
(Consider 18*21=378, those two factors on left also differ by 3.)