document.write( "Question 451551: A pool measuring 10 meters by 16 meters is surrounded by a path of uniform width. If the area of the pool and the path combined is 832 square meters, what is the width of the path? \n" ); document.write( "
Algebra.Com's Answer #310490 by pedjajov(51)![]() ![]() ![]() You can put this solution on YOUR website! Path around the pool altogether with pool creates a new rectangle with \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " - length equal to the length of the pool increased by the width of the path \n" ); document.write( " - width equal to the width of the pool increased by the width of the path\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If we mark width of the path with x we get the following formula for the area of the new rectangle\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " (10+x)(16+x) =832, do the multiplication \n" ); document.write( " 160+10x+16x+x^2=832, combine numbers and terms with x \n" ); document.write( " x^2+26x+160 =832, subtract 832 from the both sides\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Two solutions we get are x = 16 or x = -42\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Only acceptable solution is a positive number so x = 16 meters. \n" ); document.write( " \n" ); document.write( " |