document.write( "Question 817057: Mr. Warren drove from Twonsville to Villaville and back again at the speeds shown. Hit total driving time was 12 hours. How far apart are the two towns? \r
\n" ); document.write( "\n" ); document.write( "-----> 70mph
\n" ); document.write( "<----- 50mph
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Algebra.Com's Answer #491863 by Alan3354(69443)\"\" \"About 
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Mr. Warren drove from Twonsville to Villaville and back again at the speeds shown. Hit total driving time was 12 hours. How far apart are the two towns? \r
\n" ); document.write( "\n" ); document.write( "-----> 70mph
\n" ); document.write( "<----- 50mph
\n" ); document.write( "--------------
\n" ); document.write( "Avg speed for the round trip = 2*70*50/(70+50)
\n" ); document.write( "= 700/12 = 175/3 mi/hr
\n" ); document.write( "----
\n" ); document.write( "TR distance = r*t = (175/3)*12
\n" ); document.write( "= 700 miles
\n" ); document.write( "--> 350 miles each way
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