document.write( "Question 308454: A round trip in a helicopter lasted 4 and 1/2 hours. If it flew away from the airport at 100 mph and back at 50 mph, what was the greatest distance from the airport? \n" ); document.write( "
Algebra.Com's Answer #220572 by ankor@dixie-net.com(22740)\"\" \"About 
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A round trip in a helicopter lasted 4 and 1/2 hours.
\n" ); document.write( " If it flew away from the airport at 100 mph and back at 50 mph, what was the
\n" ); document.write( " greatest distance from the airport?
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\n" ); document.write( "Let d = one way distance
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\n" ); document.write( "Write a time equation tim = dist/speed;
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\n" ); document.write( "out time + back time = 4.5 hrs
\n" ); document.write( "\"d%2F100\" + \"d%2F50\" = 4.5
\n" ); document.write( "multiply by 100, results:
\n" ); document.write( "d + 2d = 4.5(100)
\n" ); document.write( "3d = 450
\n" ); document.write( "d = \"450%2F3\"
\n" ); document.write( "d = 150 mi was the greatest distance
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\n" ); document.write( "Check solution, find the time each way
\n" ); document.write( "150/50 = 3 hrs
\n" ); document.write( "150/100 = 1.5 hrs
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\n" ); document.write( "total: 4.5 hrs\r
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