document.write( "Question 389345: The length of the top of the table is 7m greater than the width. The area is 78m^2. What is the dimensions of the table? \n" ); document.write( "
Algebra.Com's Answer #275878 by mananth(16946) You can put this solution on YOUR website! The length of the top of the table is 7m greater than the width. The area is 78m^2. What is the dimensions of the table? \n" ); document.write( "... \n" ); document.write( "let width be x m \n" ); document.write( "length = x+7 m \n" ); document.write( ".. \n" ); document.write( "L*W = Area \n" ); document.write( "x(x+7)=78 \n" ); document.write( "x^2+7x=78 \n" ); document.write( "-78 -78 \n" ); document.write( "x^2+7x-78=0 \n" ); document.write( "x^2+13x-6x-78=0 \n" ); document.write( "x(x+13)-6(x+13)=0 \n" ); document.write( "(x+13)(x-6)=0 \n" ); document.write( "ignore negative \n" ); document.write( "x= 6 m the width. \n" ); document.write( "length = 6+7 = 13 m. \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |