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)![]() ![]() ![]() You can put this solution on YOUR website! 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 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |