SOLUTION: How much time do you save if you drive 10 mph faster for 100 miles?
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Question 848511: How much time do you save if you drive 10 mph faster for 100 miles?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
How much time do you save if you drive 10 mph faster for 100 miles?
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It depends on speed.
If it's 10 mi/hr faster than 10 mi/hr, you "save" 5 hours.
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Difference in time = 100/r - 100/(r+10)
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