document.write( "Question 872807: A tropical fish tank at an aquarium is 4 feet high and has a volume of 500ft^3. The length of the tank is twice the width. What is the width of the tank to the nearest tenth of a foot? \n" ); document.write( "
Algebra.Com's Answer #526422 by lwsshak3(11628)\"\" \"About 
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A tropical fish tank at an aquarium is 4 feet high and has a volume of 500ft^3. The length of the tank is twice the width. What is the width of the tank to the nearest tenth of a foot?
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\n" ); document.write( "let x=width of tank
\n" ); document.write( "2x=length of tank
\n" ); document.write( "volume=length*width*height
\n" ); document.write( "2x*x*4=500
\n" ); document.write( "8x^2=500
\n" ); document.write( "x^2=500/8=62.5
\n" ); document.write( "x=√62.5
\n" ); document.write( "x=7.9
\n" ); document.write( "width of the tank=7.9 ft
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