document.write( "Question 337320: Two planes left an airport at noon. one flew east at a certain speed and the other flew west at twice the speed. The planes were 2700 mi apart in 3h. How fast was each plane flying? \n" ); document.write( "

Algebra.Com's Answer #241818 by stanbon(75887) $\"\"$ $\"About$

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Two planes left an airport at noon. one flew east at a certain speed and the other flew west at twice the speed. The planes were 2700 mi apart in 3h. How fast was each plane flying?
\n" ); document.write( "-----------------------------
\n" ); document.write( "East flight DATA:
\n" ); document.write( "rate = x mph ; time = 3 hr ; distance = 3x miles
\n" ); document.write( "--------
\n" ); document.write( "West flight DATA:
\n" ); document.write( "rate = 2x mph ; time = 3 hr; distance = 6x miles
\n" ); document.write( "-----------------
\n" ); document.write( "Equation:
\n" ); document.write( "distance + distance = 2700 miles
\n" ); document.write( "3x + 6x = 2700 miles
\n" ); document.write( "9x = 2700
\n" ); document.write( "x = 300 mph
\n" ); document.write( "---
\n" ); document.write( "East flight rate = x = 300 mph
\n" ); document.write( "West flight rate = 2x = 600 mph
\n" ); document.write( "===================================
\n" ); document.write( "Cheers,
\n" ); document.write( "stan H. \n" ); document.write( "

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