OpenStudy (anonymous):

Elena takes a 30-minute break after every four hours of driving. If she averages 60 miles per hour, how long will it take her to drive 600 miles?

OpenStudy (anonymous):

11 hours

OpenStudy (anonymous):

Yeah, that was my answer. In 5 hours she does 270 miles, so I set up a proportion

OpenStudy (anonymous):

$\frac{ 5hours }{ 270mi } = \frac{ xhours }{ 600mi }$