document.write( "Question 286490: 1.Pipe A can fill a tank in 30 minutes. Pipe B can feel the same tank in 20 minutes. How long will it take to fill the tank using both pipes at the same time?\r
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document.write( "NOTE:( can you please show the work or somehow explain them so i can understand how to do it..thank you) \n" );
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Algebra.Com's Answer #207787 by stanbon(75887) ![]() You can put this solution on YOUR website! Pipe A can fill a tank in 30 minutes. Pipe B can feel the same tank in 20 minutes. How long will it take to fill the tank using both pipes at the same time? \n" ); document.write( "----------------- \n" ); document.write( "A rate: 1/30 tank/min \n" ); document.write( "B rate: 1/20 tank/min \n" ); document.write( "------------------------- \n" ); document.write( "Together rate: 1/x tank/min \n" ); document.write( "================================== \n" ); document.write( "Equation: \n" ); document.write( "rate + rate = together rate \n" ); document.write( "1/30 + 1/20 = 1/x \n" ); document.write( "-------- \n" ); document.write( "Multiply thru by 60x and solve for \"x\": \n" ); document.write( "2x + 3x = 60 \n" ); document.write( "5x = 60 \n" ); document.write( "x = 12 minutes (time to fill the tank using both tanks) \n" ); document.write( "============================================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |