document.write( "Question 298485: A photograph 8 cm by 11 cm will be framed as shown in the diagram. The
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document.write( " combined area of the frame and photograph will be 180 cm2. Algebraically
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document.write( " determine the outside dimensions of the frame.
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Algebra.Com's Answer #214687 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! (8+2X)(11+2X)=180 \n" ); document.write( "88+38X+4X^2=180 \n" ); document.write( "4X62+38X+88-180=0 \n" ); document.write( "4X^2+38X-92=0 \n" ); document.write( "(2X-4)(2X+23)=0 \n" ); document.write( "2X-4=0 \n" ); document.write( "2X=4 \n" ); document.write( "X=4/2 \n" ); document.write( "X=2 cm is the width of the frame. \n" ); document.write( "The dimentios odf the picture & frame is: \n" ); document.write( "8+4=12 \n" ); document.write( "11+4=15 \n" ); document.write( "Proof: \n" ); document.write( "12*15=180 \n" ); document.write( "180=180 \n" ); document.write( " \n" ); document.write( " |