document.write( "Question 1001452: A tank is filled in 9hrs and drained in 11hrs. How long will it take to fill the tank if the drain is left half open \n" ); document.write( "

Algebra.Com's Answer #618634 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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A tank is filled in 9hrs and drained in 11hrs.
\n" ); document.write( " How long will it take to fill the tank if the drain is left half open.
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\n" ); document.write( "If the drain is left half open, we can assume it will take twice as long to drain a full tank. 22 hrs
\n" ); document.write( ":
\n" ); document.write( "let t = time to fill the tank with the drain half open
\n" ); document.write( "let the completed job = 1 (a full tank)
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\n" ); document.write( " $\"t%2F9\"$ - $\"t%2F22\"$ = 1
\n" ); document.write( "multiply equation by 9 * 22 = 198, cancel the denominators
\n" ); document.write( "22t - 9t = 198
\n" ); document.write( "13t = 198
\n" ); document.write( "t = 198/13
\n" ); document.write( "t = 15.23 hrs to fill the tank, about 15 hrs 14 min \n" ); document.write( "

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