SOLUTION: Finding the area of a square.If the 9 ft^2 square painting is mounted with border on a square frame.If the total area of the border is 3.25 ft^2,what is the length of a sid
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Question 978755: Finding the area of a square.If the 9 ft^2 square painting is mounted with border on a square frame.If the total area of the border is 3.25 ft^2,what is the length of a side of the frame?
Answer by josgarithmetic(39616) (Show Source): You can put this solution on YOUR website!
Maybe to mean,
Square painting of area 9 ft^2 is mounted on or in a square frame, and the area of the frame border around the picture is 3.25 ft^2. Find the length of any side of the frame.
The uniform width of the border around the picture is a number, x.
If 9 sq.ft. is area of the picture, then 3 feet is the side of this square picture.
Area inside the frame,
Area of just the picture, , already given.
Area of the border around the picture, of just the frame itself, .
Solve for x using a few steps of algebra & arithmetic. Note that the question really means, find the value for .
----further thought,
Solving for x is not necessary. You CAN just solve the equation for 3+2x.
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