document.write( "Question 121358: Solve.\r
\n" );
document.write( "\n" );
document.write( "A garden area is 30 feet long and 20 feet wide. A path of uniform width is set around the edge. If the remaining garden area is 400 feet squared, what is the width of the path? \n" );
document.write( "
Algebra.Com's Answer #89062 by jaymore(5)![]() ![]() ![]() You can put this solution on YOUR website! Let the width of the path be x\r \n" ); document.write( "\n" ); document.write( "New dimension will be:\r \n" ); document.write( "\n" ); document.write( "30-2x and 20-2x\r \n" ); document.write( "\n" ); document.write( "Area is 400\r \n" ); document.write( "\n" ); document.write( "(30-2x)(20-2x)=400\r \n" ); document.write( "\n" ); document.write( "Expand to get 4x2-100x+200=0\r \n" ); document.write( "\n" ); document.write( "Divide by 4 throught the equation to get\r \n" ); document.write( "\n" ); document.write( "x2-25x+50=0\r \n" ); document.write( "\n" ); document.write( "Factorize or use quadratic formula get the value of X. \n" ); document.write( " |