at 6;00 a bus left denver and travelled 40 mph. A van left 1 hr. later at 55mph.

Algebra
Tutor: None Selected Time limit: 1 Day

What time will the van take over the bus? 

Nov 24th, 2014

Distance = Speed*Time, so Distance/Speed = Time

The bus has a 40 mph*1 hour = 40 mile head start.  The van is moving 15 mph faster that the bus.  The van will close the 40 mile gap and catch the bus in (40 miles)/(15 mph) = 2 2/3 hours or 2 hours and 40 minutes

Nov 24th, 2014

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