document.write( "Question 518978: A RECTANGLE HAS AN AREA OF 18 M2 AMD A PERIMETER OF 18 M. WHAT ARE IT LENGTH AND WIDTH? \n" ); document.write( "
Algebra.Com's Answer #345317 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
A RECTANGLE HAS AN AREA OF 18 M^2 AMD A PERIMETER OF 18 M. WHAT ARE IT LENGTH AND WIDTH?
\n" ); document.write( "---
\n" ); document.write( "Area = (length)(width) = M^2
\n" ); document.write( "Perimeter = 2(length+width) = 18M
\n" ); document.write( "-----
\n" ); document.write( "L+W = 9M
\n" ); document.write( "L = 9M-W
\n" ); document.write( "----
\n" ); document.write( "Area = (9M-W)W = M^2
\n" ); document.write( "9MW-W^2 = M^2
\n" ); document.write( "---
\n" ); document.write( "w^2 -9mw+m^2 = 0
\n" ); document.write( "---
\n" ); document.write( "w = [9m +- sqrt(81m^2-4m^2)]/2
\n" ); document.write( "---
\n" ); document.write( "w = [9m +- sqrt(77m^2)]/2
\n" ); document.write( "---
\n" ); document.write( "w = (9/2)m + m*sqrt(77)/2
\n" ); document.write( "---
\n" ); document.write( "w = [9+sqrt(77)](m/2)
\n" ); document.write( "----
\n" ); document.write( "I'll leave solution of \"L\" to you.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );