document.write( "Question 123765: The length of a rectangle is three times the width. What is the width if the area is 147 square feet? \n" ); document.write( "
Algebra.Com's Answer #90780 by checkley71(8403)\"\" \"About 
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L=3W
\n" ); document.write( "(3W)W=147
\n" ); document.write( "3W^2=147
\n" ); document.write( "W^2=49
\n" ); document.write( "W=SQRT49
\n" ); document.write( "W=7 ANSWER.
\n" ); document.write( "PROOF
\n" ); document.write( "3*7*7
\n" ); document.write( "147=147\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
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