document.write( "Question 705751: A rectangular picture frame is twice as long as it is wide,if the perimeter is 30cm what is its length?\r
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Algebra.Com's Answer #434824 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! L=2W \n" ); document.write( "P=2L+2W \n" ); document.write( "30=2*2W+2W \n" ); document.write( "30=4W+2W \n" ); document.write( "30=6W \n" ); document.write( "W=30/6 \n" ); document.write( "W=5 cm. ANS. \n" ); document.write( "L=2*5=10 cm. ANS. \n" ); document.write( "PROOF: \n" ); document.write( "30=2*10+2*5 \n" ); document.write( "30=20+10 \n" ); document.write( "30=30 \n" ); document.write( " |