document.write( "Question 190555: I have a world problem, not sure if I solved it correctly. Could I have some help, thank you. A picture frame is 14cm by 18cm. There are 192cm2 of the picture showing. Find the width of the frame. I have 2cm. Is this correct. Thank you. \n" ); document.write( "
Algebra.Com's Answer #143011 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A picture frame is 14cm by 18cm. There are 192cm2 of the picture showing. Find the width of the frame. I have 2cm. \n" ); document.write( "---------------------- \n" ); document.write( "Draw a rectangle inside a rectangle. \n" ); document.write( "--------------------------------------------- \n" ); document.write( "Let the uniform frame width be \"x\". \n" ); document.write( "(18-2x)(14-2x) = 192 \n" ); document.write( "252-28x-36x+4x^2 = 192 \n" ); document.write( "4x^2-64x+60 = 0 \n" ); document.write( "x^2-16x+15) = 0 \n" ); document.write( "(x-15)(x-1)=0 \n" ); document.write( "Realistic solution: \n" ); document.write( "x = 1 cm \n" ); document.write( "--------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |