document.write( "Question 945921: Bob drove from home to work at 75 mph. After work the traffic was heavier, and he drove home at 40 mph. His driving time to and from work was 1 hour and 9 minutes. How far does he live from his job? \n" ); document.write( "
Algebra.Com's Answer #577029 by Alan3354(69443)\"\" \"About 
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Bob drove from home to work at 75 mph. After work the traffic was heavier, and he drove home at 40 mph. His driving time to and from work was 1 hour and 9 minutes. How far does he live from his job?
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\n" ); document.write( "Avg speed for the round trip = 2*75*40/(75+40) = 6000/115 = 1200/23 mi/hr
\n" ); document.write( "RT distance = 1200/23 * 69 minutes * 1 hr/60 mins =
\n" ); document.write( "= 60 miles
\n" ); document.write( "30 miles each way
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