document.write( "Question 402960: brent takes a trip in his car. he covers the first 30 miles in one-half hour and the last 50 miles in one hour. find his average speed in m/h?
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Algebra.Com's Answer #284996 by Alan3354(69443)\"\" \"About 
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brent takes a trip in his car. he covers the first 30 miles in one-half hour and the last 50 miles in one hour. find his average speed in m/h?
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\n" ); document.write( "He goes 80 miles in 1.5 hours
\n" ); document.write( "80 mi/1.5 hr = 53 1/3 mph
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