document.write( "Question 473435: A winery has a vat with two pipes leading to it. The inlet pipe can fill the vat in 3 hours, while the outlet pipe can empty it in 8 hours. How long will it take to fill the vat if both pipes are left open? \n" ); document.write( "
Algebra.Com's Answer #324809 by ankor@dixie-net.com(22740)\"\" \"About 
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A winery has a vat with two pipes leading to it.
\n" ); document.write( " The inlet pipe can fill the vat in 3 hours, while the outlet pipe can empty it in 8 hours.
\n" ); document.write( "How long will it take to fill the vat if both pipes are left open?
\n" ); document.write( ":
\n" ); document.write( "let t = time required to fill the vat with both valves open
\n" ); document.write( "let the completed job = 1, (a full vat)
\n" ); document.write( ":
\n" ); document.write( "Fill is plus, empty is minus
\n" ); document.write( ":
\n" ); document.write( "\"t%2F3\" - \"t%2F8\" = 1
\n" ); document.write( "multiply by 24 to clear the denominators, result:
\n" ); document.write( "8t - 3t = 24
\n" ); document.write( "5t = 24
\n" ); document.write( " t = \"24%2F5\"
\n" ); document.write( " t = 4.8 hrs to fill it with both valves open
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check
\n" ); document.write( "4.8/3 - 4.8/8 =
\n" ); document.write( "1.6 - .6 = 1; confirms our solution of t = 4.8
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