document.write( "Question 266449: The width of a retangle is fixed at 15cm. What lengths will make the perimeter greater than 86cm? \n" ); document.write( "
Algebra.Com's Answer #195763 by drk(1908)\"\" \"About 
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The perimeter formula is
\n" ); document.write( "P = 2L + 2W
\n" ); document.write( "we know that we = 15, so we get
\n" ); document.write( "P = 2L + 30.
\n" ); document.write( "Now we want perimeter > 86, so we have
\n" ); document.write( "86 < 2L + 30
\n" ); document.write( "subtracting, we get
\n" ); document.write( "56 < 2L
\n" ); document.write( "dividing, we get
\n" ); document.write( "28 < L
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