document.write( "Question 767486: A water tank can be filled by an inlet pipe in t = 7 hours. It takes twice that long for the outlet pipe to empty the tank. How long will it take to fill the tank if both pipes are open? \n" ); document.write( "
Algebra.Com's Answer #467656 by josgarithmetic(39620)![]() ![]() ![]() You can put this solution on YOUR website! Two rates are these:\r \n" ); document.write( "\n" ); document.write( "Fill, \n" ); document.write( "Empty, \n" ); document.write( "Combined Rates for each pipe: \n" ); document.write( "The reciprocal of this is the rate to fill as HOURs per TANK. \n" ); document.write( " |