document.write( "Question 700832: Summer drove at an average speed of 35 mi/h from her home in Dallas to visit her sister in Minneapolis. She stayed in Minneapolis 20 hours, and on the trip back averaged 45 mi/h. She returned home 50 hours after leaving. How many miles is Dallas from Minneapolis? \n" ); document.write( "
Algebra.Com's Answer #432164 by ankor@dixie-net.com(22740)\"\" \"About 
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Summer drove at an average speed of 35 mi/h from her home in Dallas to visit her sister in Minneapolis.
\n" ); document.write( " She stayed in Minneapolis 20 hours, and on the trip back averaged 45 mi/h.
\n" ); document.write( " She returned home 50 hours after leaving.
\n" ); document.write( " How many miles is Dallas from Minneapolis?
\n" ); document.write( ":
\n" ); document.write( "Actual travel time: 50-20 = 30 hrs
\n" ); document.write( ":
\n" ); document.write( "Let d = one way dist
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\n" ); document.write( "Write a time equation, time = dist/speed
\n" ); document.write( "\"d%2F35\" + \"d%2F45\" = 30
\n" ); document.write( "multiply by 315 to clear the denominators
\n" ); document.write( "9d + 7d = 315(30)
\n" ); document.write( "16d = 9450
\n" ); document.write( "d = 9450/16
\n" ); document.write( "d = 590.6 mi one way (Actually it's almost twice that) \n" ); document.write( "
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