document.write( "Question 555520: A square lobby is to be tiled at a cost 160 per square meter. If the lobby were 2 m narrower and 2 m longer the cost of the tiling would be 35,360. Find the dimensions of the lobby. \n" ); document.write( "
Algebra.Com's Answer #361816 by edjones(8007)![]() ![]() You can put this solution on YOUR website! s=one side of the square lobby. \n" ); document.write( "35360/160=221 m^2 \n" ); document.write( "(s+2)(s-2)=221 \n" ); document.write( "s^2-4=221 \n" ); document.write( "s^2=225 \n" ); document.write( "s=15 m \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |