document.write( "Question 447040: Can someone help me with this?\r
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document.write( "A tank can be filled in 15 hours by pipe A alone and in 30 hours by pipe B alone. How long will it take to fill the tank if both pipes are working?\r
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document.write( "Thanks \n" );
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Algebra.Com's Answer #307811 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! 1/15+1/30=1/x \n" ); document.write( "2x+1x=30 \n" ); document.write( "3x=30 \n" ); document.write( "x=10 hours to fill the tank with both pipes working.. \n" ); document.write( " |