document.write( "Question 839565: A tank is filled in 9 hours and drained in 11 hours. How long will it take to fill the tank if the drain is left half open? \n" ); document.write( "
Algebra.Com's Answer #505752 by josgarithmetic(39617)\"\" \"About 
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Use the fill rates as amount of tank per amount of time, so you would have the filler as 1/9 tanks per hour, and the drain as \"-1%2F11\" tanks per hour, IF it were fully open.\r
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\n" ); document.write( "\n" ); document.write( "Filling Rate is this, if the filler is fully open and drainer is HALF open:
\n" ); document.write( "\"1%2F9-1%2F22\" tankfulls per hour
\n" ); document.write( "\"22%2F198-9%2F198\"
\n" ); document.write( "\"highlight_green%2813%2F198%29\" tankfulls per hour.
\n" ); document.write( "This assumes that half-open drainer means half the drain rate for that opening.\r
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\n" ); document.write( "\n" ); document.write( "\"Rate%2ATime=Tank\"
\n" ); document.write( "Uniform rate equation to do a particular job on a tank; in this case, filling it according to the conditions described.\r
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\n" ); document.write( "\n" ); document.write( "\"highlight%28%2813%2F198%29%2At=1%29\"
\n" ); document.write( "Solve for t, the time to fill this tank with the drain being half opened.\r
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