document.write( "Question 1169210:  An airplane is preparing to land at an airport. It is 52200 feet above the ground and is descending at the rate of 3300 feet per minute. At the same​ airport, another airplane is taking off and will ascend at the rate of 2500 feet per minute. When will the two airplanes be at the same altitude and what will that altitude​ be? \n" ); document.write( "
Algebra.Com's Answer #793845 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
An airplane is preparing to land at an airport. It is 52200 feet above the ground and is descending at the rate of 3300 feet per minute.
\n" ); document.write( " At the same​ airport, another airplane is taking off and will ascend at the rate of 2500 feet per minute.
\n" ); document.write( "When will the two airplanes be at the same altitude and what will that altitude​ be?
\n" ); document.write( ":
\n" ); document.write( "let t = no of minutes when they are at the same altitude
\n" ); document.write( ":
\n" ); document.write( "52200 - 3300t = 2500t
\n" ); document.write( "52200 = 3300t + 2500t
\n" ); document.write( "52200 = 5800t
\n" ); document.write( "t = 52200/5800
\n" ); document.write( "t = 9 minutes they will be at the same altitude
\n" ); document.write( ":
\n" ); document.write( "The altitude:
\n" ); document.write( "9*2500 = 22500 ft
\n" ); document.write( ":
\n" ); document.write( "Check on other train
\n" ); document.write( "52200 - 9(3300) =
\n" ); document.write( "52200 - 29700 = 22500 ft \n" ); document.write( "
\n" );