document.write( "Question 51265: A rectangular garden is to be surrounded by a walkway of constant width. The garden's dimensions are 30 ft by 40 ft. The total area, garden plus walkway, is to be 1800 ft^2. What must be the width of the walkway to the nearest thousandth? \n" ); document.write( "
Algebra.Com's Answer #34239 by venugopalramana(3286)\"\" \"About 
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A rectangular garden is to be surrounded by a walkway of constant width. The garden's dimensions are 30 ft by 40 ft. The total area, garden plus walkway, is to be 1800 ft^2. What must be the width of the walkway to the nearest thousandth?
\n" ); document.write( "WIDTH OF WALK WAY = X
\n" ); document.write( "LENGTH OF GARDEN WITH WALK WAY =40+X+X=40+2X
\n" ); document.write( "WIDTH..........................=30+X+X=30+2X
\n" ); document.write( "AREA =(2X+40)(2X+30)=1800
\n" ); document.write( "(X+20)(X+15)=450
\n" ); document.write( "X^2+35X+300-450=0
\n" ); document.write( "X^2+35X-150=0
\n" ); document.write( "X={-35+SQRT(35^2+4*150)}/2=3.860
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