SOLUTION: Janet drove 355 miles south along Interstate 5, starting in Seattle, Washington, at 5:30 AM. She reached her exit at 1:00 P.M. She stopped at rest areas twice, once for 34of an ho

Algebra ->  Equations -> SOLUTION: Janet drove 355 miles south along Interstate 5, starting in Seattle, Washington, at 5:30 AM. She reached her exit at 1:00 P.M. She stopped at rest areas twice, once for 34of an ho      Log On


   



Question 927127: Janet drove 355 miles south along Interstate 5, starting in Seattle, Washington, at 5:30 AM. She reached her exit at 1:00 P.M. She stopped at rest areas twice, once for 34of an hour, and once for 12an hour. What was her average speed, to one decimal point, while she was driving (taking out the time for the stops)?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Her time, including rests was:
5:30 AM to 1 PM = +7.5+ hrs
Her actual driving time was:
+7.5+-+.75+-+.5+=+7.5+-+1.25+
+7.5+-+1.25+=+6.25+ hrs
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Average speed =
+355+%2F+6.25+=+56.8+ mi/hr