SOLUTION: The outside dimensions of a picture frame are 38cm and 35cm. The area of the picture inside the frame is 810 square centimeters. Find the width of the frame.
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Question 445550: The outside dimensions of a picture frame are 38cm and 35cm. The area of the picture inside the frame is 810 square centimeters. Find the width of the frame. Answer by jorel1380(3719) (Show Source):
You can put this solution on YOUR website! (38-2x)(35-2x)=810
1330-146x+4x2=810
4x2-146x+520=0
2x2-73x+260=0
(2x-65)(x-4)=0
x=65/2 or 4
Throwing out the 65/2, we get the width of the frame to be 4..
