document.write( "Question 503591: The Perimeter of a parallelogram is 54. The ratio of the lengths of the sides is 2:7 What are the lengths of the sides?\r
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document.write( "A)4 and 14 B)8 and 28
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document.write( "C)6 and 21 D) 24 and 30
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document.write( "E)12 and 42 \n" );
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Algebra.Com's Answer #339307 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! The Perimeter of a parallelogram is 54. The ratio of the lengths of the sides is 2:7 What are the lengths of the sides? \n" ); document.write( "** \n" ); document.write( "let x=length of longer side \n" ); document.write( "let y=length of shorter side \n" ); document.write( ".. \n" ); document.write( "2x+2y=54 \n" ); document.write( "y/x=2/7 \n" ); document.write( "y=2x/7 \n" ); document.write( "2x+2(2x/7)=54 \n" ); document.write( "2x+4x/7=54 \n" ); document.write( "14x+4x=7*54=378 \n" ); document.write( "18x=378 \n" ); document.write( "x=378/18=21 \n" ); document.write( "y=2*21/7=42/7=6 \n" ); document.write( "ans: \n" ); document.write( "length of longer side=21 \n" ); document.write( "length of shorter side=6 \n" ); document.write( " |