document.write( "Question 177293: perimeter of a rectangle is 78 m. The length is 9 m more than twice the width. Find the dimentions of the lenghth and width. \n" ); document.write( "
Algebra.Com's Answer #132373 by checkley75(3666)\"\" \"About 
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2L+2W=PERIMETER IS THE FORMULA.
\n" ); document.write( "L=2W+9 THIS IS GIVEN
\n" ); document.write( "2(2W+9)+2W=78
\n" ); document.write( "4W+18+2W=78
\n" ); document.write( "6W=78-18
\n" ); document.write( "6W=60
\n" ); document.write( "W=60/6
\n" ); document.write( "W=10 m. ans. for the width.
\n" ); document.write( "L=2*10+9
\n" ); document.write( "l=20+9
\n" ); document.write( "L=29 m. ans. for the length.
\n" ); document.write( "Proof:
\n" ); document.write( "2*29+2*10=78
\n" ); document.write( "58+20=78
\n" ); document.write( "78=78
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