document.write( "Question 236183: A cargo plane left Tokyo and flew toward Las Vegas at an average speed of 385.6 km/h. Some time later a passenger plane left flying in the opposite direction with an average speed of 201.6 km/h. After the cargo plane had flown for 7.5 hours the planes were 3597.6 km apart. Find the number of hours the passenger plane flew. \n" ); document.write( "
Algebra.Com's Answer #173898 by checkley77(12844)\"\" \"About 
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385.6*7.5+210.6X=3,597,6
\n" ); document.write( "2,895+210.6X=3,597.6
\n" ); document.write( "210.6X=3,597.6-2,895
\n" ); document.write( "210.6X=702.6
\n" ); document.write( "X=702.6/210.6
\n" ); document.write( "X=3.336 OR 3 HRS & 20 MIN. IS THE FLIGHT TIME FOR THE PASSENGER PLANE.
\n" ); document.write( "PROOF:
\n" ); document.write( "385.6*7.5+210.6*3.336=3,597.6
\n" ); document.write( "2,895+702.6=3,597.6
\n" ); document.write( "3,597.6=3,597.6
\n" ); document.write( "
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