SOLUTION: Rose is carefully framing a 12-inch x 16-inch family photo so that the length and width of the frame have the same ratio as the photo. She is using a piece of frame 70 inches in le
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Question 917664: Rose is carefully framing a 12-inch x 16-inch family photo so that the length and width of the frame have the same ratio as the photo. She is using a piece of frame 70 inches in length (perimeter). What are the length and width of the frame?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = length of the frame
Let = the width of the frame
---------------
Given:
(1)
------------------
( formula )
(2)
------------------
(1)
Substitute this into (2)
(2)
(2)
(2)
(2)
and, since
(2)
(2)
(2)
---------------
The length is 20 in.
The width is 15 in.
-----------------
check:
OK
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