document.write( "Question 658697: a rectangular room is 3 meters longer than it is wide, and its perimeter is 30 meters.Find the dimensions of the room \n" ); document.write( "
Algebra.Com's Answer #410607 by colliefan(242)\"\" \"About 
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If we call the width w, then the length is w+3. We know that the perimeter is the sum of all 4 sides, that is two widths and two heights. That give the following equation:\r
\n" ); document.write( "\n" ); document.write( "2w+2(w+3)=30\r
\n" ); document.write( "\n" ); document.write( "Then solve for w. Remember, what you do to one side, you must do to the other so it continues to have equal sides of the equation.\r
\n" ); document.write( "\n" ); document.write( "2w+2w+6=30
\n" ); document.write( "4w+6=30
\n" ); document.write( "4w+6-6=30-6
\n" ); document.write( "4w+0=24
\n" ); document.write( "4w=24
\n" ); document.write( "1/4*4w=24*1/4
\n" ); document.write( "1*w=6
\n" ); document.write( "w=6\r
\n" ); document.write( "\n" ); document.write( "If the width=6 meters, the length must be w+3 or 9 meters. Check to see if the perimeter is 30 meters. \r
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