document.write( "Question 759023: One-fifth the perimeter of a building is 50 feet. The length of the building is 30 feet longer than the width. What is the area of the building? \n" ); document.write( "
Algebra.Com's Answer #461788 by MathLover1(20849)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"One-fifth\" the perimeter of a building is \"50ft\".\r
\n" ); document.write( "\n" ); document.write( "\"P=2%28L%2BW%29\"....eq.1......the perimeter of a building \r
\n" ); document.write( "\n" ); document.write( "\"One-fifth\" of the perimeter is \"P%2F5=50ft\"; so, the perimeter of a building is \"P=50ft%2A5\" => \"P=250ft\"\r
\n" ); document.write( "\n" ); document.write( "then
\n" ); document.write( "\"250ft=2%28L%2BW%29\"\r
\n" ); document.write( "\n" ); document.write( "\"250ft%2F2=%28L%2BW%29\"\r
\n" ); document.write( "\n" ); document.write( "\"125ft=%28L%2BW%29\"...solve for \"L\"\r
\n" ); document.write( "\n" ); document.write( "\"L=125ft-W\"......eq. 1a\r
\n" ); document.write( "\n" ); document.write( "if the length of the building \"L\" is \"30ft\" longer than the width \"W\", than\r
\n" ); document.write( "\n" ); document.write( "\"L=W%2B30ft\".......plug in eq.1a\r
\n" ); document.write( "\n" ); document.write( "\"W%2B30ft=125ft-W\"......eq. 1a....solve for \"W\"\r
\n" ); document.write( "\n" ); document.write( "\"W%2BW=125ft-30ft\"\r
\n" ); document.write( "\n" ); document.write( "\"2W=95ft\"\r
\n" ); document.write( "\n" ); document.write( "\"W=95ft%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28W=47.5ft%29\"\r
\n" ); document.write( "\n" ); document.write( "now find \"L\"\r
\n" ); document.write( "\n" ); document.write( "\"L=47.5ft%2B30ft\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28L=77.5ft%29\"\r
\n" ); document.write( "\n" ); document.write( " the area of the building is \"A=L%2AW\"\r
\n" ); document.write( "\n" ); document.write( "\"A=77.5ft%2A47.5ft\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28A=3681.25ft%5E2%29\"\r
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