document.write( "Question 1008387: The perimeter of a rectangular picture frame is 80 centimeter. Two times the width is equal to the length increased by five. Find its dimensions.\r
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Algebra.Com's Answer #624585 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Perimeter P = 2L + 2W = 80. We also have \n" ); document.write( "2W = L + 5 or \n" ); document.write( "L = 2W - 5 \n" ); document.write( "Now substitute this onto the first equation...we get \n" ); document.write( "2(2W - 5) + 2W = 80 \n" ); document.write( "4W - 10 + 2W = 80 \n" ); document.write( "6W - 10 = 80 \n" ); document.write( "6W = 90 \n" ); document.write( "W = 15 cm \n" ); document.write( "L = 2(15) - 2 = 25 cm \n" ); document.write( " |