document.write( "Question 364780: a tank has 500 liters of oj in it is being filled from another tank at a rate of 20 liters per minute. The second tank has 740 liters in it. After how many seconds will the levels of the oj in both tanks be the same. \n" ); document.write( "
Algebra.Com's Answer #260063 by josmiceli(19441)\"\" \"About 
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Let \"x\" = the liters of oj removed from the 2nd tank
\n" ); document.write( "and added to the 1st tank
\n" ); document.write( "given:
\n" ); document.write( "\"500+%2B+x+=+740+-+x\"
\n" ); document.write( "minutes to move \"x\" liters from 2nd to 1st tank:
\n" ); document.write( "\"x%2F20\"
\n" ); document.write( "-------------------
\n" ); document.write( "\"2x+=+740+-+500\"
\n" ); document.write( "\"2x+=+240\"
\n" ); document.write( "\"x+=+120\"
\n" ); document.write( "minutes to move \"x\" liters from 2nd to 1st tank:
\n" ); document.write( "\"x%2F20\"
\n" ); document.write( "\"120%2F20+=+6\" min
\n" ); document.write( "\"6\" min x \"60\" sec/min = 360 sec
\n" ); document.write( "
\n" );