document.write( "Question 1066593: An airplane flies 310 miles in 1/2 hour.What is its average speed in miles per hour? \n" ); document.write( "
Algebra.Com's Answer #681770 by stanbon(75887)\"\" \"About 
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An airplane flies 310 miles in 1/2 hour.What is its average speed in miles per hour?
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\n" ); document.write( "Ans: 310 miles / (1/2) hour = 620 miles/hour
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