document.write( "Question 804131: a vessel full of water weights 40 kg. If it is half filled, its weights is 30 kg. The weight of the empty vessel is- \n" ); document.write( "
Algebra.Com's Answer #484630 by josgarithmetic(39617)\"\" \"About 
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Full vessel, 40 kg.
\n" ); document.write( "Half-full vessel, 30 kg.
\n" ); document.write( "Amount of water for half full is 40-30=10 kg.\r
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\n" ); document.write( "\n" ); document.write( "The amount of water is TWO halves so 10+10=20 kg. is the amount of water that the full vessel holds.\r
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\n" ); document.write( "\n" ); document.write( "If v is weight of the vessel, and 20 is the weight of just the water, then 20+v=40. Solving for v, find v=40-20,
\n" ); document.write( "v=20 kg.\r
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\n" ); document.write( "\n" ); document.write( "The vessel is 20 kg.
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