document.write( "Question 543149: An airplane flies from New Orleans, Louisiana, to Atlanta, Georgia, at an average rate of 320 miles per hour. The airplane then returns at an average rate of 280 miles per hour. The total travel time is 3 hours. How long was the flight from New Orleans to Atlanta? \n" ); document.write( "
Algebra.Com's Answer #354889 by ankor@dixie-net.com(22740)\"\" \"About 
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An airplane flies from New Orleans, Louisiana, to Atlanta, Georgia, at an average rate of 320 miles per hour.
\n" ); document.write( " The airplane then returns at an average rate of 280 miles per hour.
\n" ); document.write( " The total travel time is 3 hours.
\n" ); document.write( " How long was the flight from New Orleans to Atlanta?
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\n" ); document.write( "Find the distance first, then it is an easy calculation to find the flight times
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\n" ); document.write( "Let d = the one-way distance
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\n" ); document.write( "Write a time equation; time = dist/speed
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\n" ); document.write( "To time + return time = 3 hrs
\n" ); document.write( "\"d%2F320\" + \"d%2F280\" = 3
\n" ); document.write( "Multiply by the LCM of the denominators, 2240
\n" ); document.write( "2240*\"d%2F320\" + 2240\"d%2F280\" = 2240(3)
\n" ); document.write( "Cancel the denominators, you have
\n" ); document.write( "7d + 8d = 6720
\n" ); document.write( "15d = 6720
\n" ); document.write( "d = 6720/15
\n" ); document.write( "d = 448 mi
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\n" ); document.write( "Find the time N.O. to Atl
\n" ); document.write( "\"448%2F320\" = 1.4 hrs
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