document.write( "Question 1141378: A commercial airliner can travel 750 miles in the same amount of time that it takes a private plane to travel 300 miles. The speed of the airliner is 60 mph more than twice the speed of the private plane. Find the speed of each aircraft.
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Algebra.Com's Answer #761930 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
A commercial airliner can travel 750 miles in the same amount of time that it takes a private plane to travel 300 miles.
\n" ); document.write( " The speed of the airliner is 60 mph more than twice the speed of the private plane.
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\n" ); document.write( "let s = the speed of the private plane
\n" ); document.write( "then
\n" ); document.write( "(2s+60) = the speed of the commercial airliner
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\n" ); document.write( "Write a time equation; time = dist/speed
\n" ); document.write( "\"300%2Fs\" = \"750%2F%28%282s%2B60%29%29\"
\n" ); document.write( "cross multiply
\n" ); document.write( "750s = 300(2s+60)
\n" ); document.write( "750s = 600s + 18000
\n" ); document.write( "750s - 600s = 18000
\n" ); document.write( "150s = 18000
\n" ); document.write( "s = 18000/150
\n" ); document.write( "s = 120 mph is the speed of the private plane
\n" ); document.write( "then
\n" ); document.write( "2(120) + 60 = 300 mph is speed of the commercial airliner
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\n" ); document.write( "Check this find the actual time for each
\n" ); document.write( "300/120 = 2.5 hrs
\n" ); document.write( "750/300 = 2.5 hrs, confirms our solutions\r
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\n" ); document.write( "\n" ); document.write( " Find the speed of each aircraft
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