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
\n" ); document.write( "\n" ); document.write( "A)4 and 14 B)8 and 28
\n" ); document.write( "C)6 and 21 D) 24 and 30
\n" ); document.write( "E)12 and 42
\n" ); document.write( "

Algebra.Com's Answer #339307 by lwsshak3(11628)\"\" \"About 
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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
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