document.write( "Question 237362: An open box is to be constructed from a square piece of sheet metal by removing a square of side 3 feet from each corner and turning up the edges. If the box is to hold 300 cubic feet, what should be the dimensions of the sheet metal? \n" ); document.write( "
Algebra.Com's Answer #174561 by checkley77(12844)\"\" \"About 
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Base=x^2
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\n" ); document.write( "300=3*x^2
\n" ); document.write( "3x^2=300
\n" ); document.write( "x^2=300/3
\n" ); document.write( "x^2=100
\n" ); document.write( "x=sqrt100
\n" ); document.write( "x=10 ft. for the sides of the base.
\n" ); document.write( "(10+2*3)=10+6=16 ft. is the sides of the original sheet.
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