document.write( "Question 216342: If two planes leave the same airport at 1:00 PM, how many miles apart will they be at 3:00 PM if one travels directly north at 150 mph and the other travels directly west at 200 mph? \r
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Algebra.Com's Answer #163362 by rfer(16322)\"\" \"About 
You can put this solution on YOUR website!
you have a right triangle so use c^2=a^2+b^2
\n" ); document.write( "c^2=300^2+400^2
\n" ); document.write( "c^2=90000+160000
\n" ); document.write( "c^2=250000
\n" ); document.write( "c=500 miles apart
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