SOLUTION: If you drive 315 miles in 6 hours, how long will it take you to drive an additional 85 miles at the same rate of speed?

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Question 259159: If you drive 315 miles in 6 hours, how long will it take you to drive an additional 85 miles at the same rate of speed?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
315/6=85/x
315x=510
x=510/315
x=1.6 hrs or 1 hr 36 min