document.write( "Question 831086: #1. A man built a walk of uniform width around a rectangular pool. If the area of the walk is 315 square feet and the dimensions of the pool are 8 feet by 18 feet, how wide is the walk? \n" ); document.write( "
Algebra.Com's Answer #501177 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! (8+x)*(18+x)=8*18+315 \n" ); document.write( "(x+8) (x+18) = 459 \n" ); document.write( "x^2+26 x+144 = 459 \n" ); document.write( "x^2+26 x-315 = 0 \n" ); document.write( "x = -35 disregard negative answers \n" ); document.write( "x = 9 ft \n" ); document.write( " |