SOLUTION: engine 1 is going 30 mph and 1.5 miles away and engine 2 is going 40mph and 2.5 miles away, which arrives first and by how much time

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: engine 1 is going 30 mph and 1.5 miles away and engine 2 is going 40mph and 2.5 miles away, which arrives first and by how much time      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 945722: engine 1 is going 30 mph and 1.5 miles away and engine 2 is going 40mph and 2.5 miles away, which arrives first and by how much time
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
D=R%2At
t%5B1%5D=1.5%2F30=0.05
t%5B2%5D=2.5%2F40=0.0625
Engine 1 is first by t=0.0625-0.05=0.01525hr
or 0.01525%2A3600=45s
Engine 1 by 45 seconds.