document.write( "Question 187716: The width of a rectangle is fixed at 15cm. What lengths will make the permiter greater than 72 cm \n" ); document.write( "
Algebra.Com's Answer #140742 by nerdybill(7384)\"\" \"About 
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Let x = length
\n" ); document.write( "width is given as 15 cm
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\n" ); document.write( "Perimeter = 2(width + length)
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\n" ); document.write( "72 < 2(15+x)
\n" ); document.write( "dividing both sides by 2:
\n" ); document.write( "36 < 15+x
\n" ); document.write( "subtracting both sides by 15:
\n" ); document.write( "21 < x
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\n" ); document.write( "This says that the length has to be \"greater than\" 21 cm.
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