document.write( "Question 259622: A picture is 5cm longer than it is wide. It is in a frame that has a width of 4cm. The area of the frame alone is 344cm squared. Find the dimensions of the picture. List steps \n" ); document.write( "
Algebra.Com's Answer #191055 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A picture is 5cm longer than it is wide. It is in a frame that has a width of 4cm. The area of the frame alone is 344cm squared. Find the dimensions of the picture. List steps \n" ); document.write( "-------------------------- \n" ); document.write( "Draw the picture of a rectangle inside a rectangle. \n" ); document.write( "Let the width of the picture be \"x\". \n" ); document.write( "Then length of the picture is \"x+5\". \n" ); document.write( "----------------------------------- \n" ); document.write( "Area of the picture is x(x+5) = x^2 + 5x \n" ); document.write( "------------------------------------ \n" ); document.write( "Outside rectangle has a width of x+8 \n" ); document.write( "Outside rectangle has a length of x+5+8 = x+13 \n" ); document.write( "---------------------------------------------------- \n" ); document.write( "Total Area of the outside rectangle including the picture \n" ); document.write( "is (x+8)(x+13) = x^2 + 21x + 104 \n" ); document.write( "----------------------------------------- \n" ); document.write( "Equation: \n" ); document.write( "Total area - picture area = fram area = 344 \n" ); document.write( "x^2 + 21x + 104 -(x^2+5x) = 344 \n" ); document.write( "16x + 104 = 344 \n" ); document.write( "16x = 240 \n" ); document.write( "x = 15 \n" ); document.write( "------------------- \n" ); document.write( "Width of the picture = x = 15 cm \n" ); document.write( "Length of the picture is \"x+5\" = 20 cm \n" ); document.write( "======================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |