document.write( "Question 903836: Please help me with this problem: A small airplane flies 810 miles from Los Angeles to Portland, Oregon, with an average speed of 270 miles per hour. An hour and a half after the plane leaves, a Boeing 747 leaves Los Angeles for Portland. Both planes arrive in Portland at the same time. What was the average speed of the 747? \n" ); document.write( "
Algebra.Com's Answer #548339 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
270t=810
\n" ); document.write( "1.5s=810\r
\n" ); document.write( "\n" ); document.write( "s=540., t=3\r
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