document.write( "Question 162424: f 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
\n" );
document.write( "\n" );
document.write( "A. 50 miles
\n" );
document.write( "B. 100 miles
\n" );
document.write( "C. 500 miles
\n" );
document.write( "D. 700 miles
\n" );
document.write( "E. 1,000 miles \r
\n" );
document.write( "\n" );
document.write( "I know the answer is C; but, how do I get to the answer \n" );
document.write( "
Algebra.Com's Answer #119702 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 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? \n" ); document.write( "---------------- \n" ); document.write( "Draw the picture: a north leg of length 2*150\", and west leg of length 2*200\r \n" ); document.write( "\n" ); document.write( "--------------------- \n" ); document.write( "Use Pythagoras to find the distance between them: \n" ); document.write( "d = sqrt[300^2 + 400^2] \n" ); document.write( "d = sqrt[250,000] \n" ); document.write( "d = 500 miles \n" ); document.write( "====================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "======================= \n" ); document.write( "A. 50 miles \n" ); document.write( "B. 100 miles \n" ); document.write( "C. 500 miles \n" ); document.write( "D. 700 miles \n" ); document.write( "E. 1,000 miles \n" ); document.write( "I know the answer is C; but, how do I get to the answer \n" ); document.write( " \n" ); document.write( " |