Question 229731:  a jet leaves the charlotte, north carolina, airport traveling at an average rate of 564 Km/h. another jet leaves the airport one half hour later traveling at 744 Km/h in the same direction. use an equation to find out how long the second jet eill take to overtake the first jet. 
 Answer by Alan3354(69443)      (Show Source): 
You can  put this solution on YOUR website!  a jet leaves the charlotte, north carolina, airport traveling at an average rate of 564 Km/h. another jet leaves the airport one half hour later traveling at 744 Km/h in the same direction. use an equation to find out how long the second jet eill take to overtake the first jet. 
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In 1/2 hour, the 1st jet goes 282 km (564*0.5) 
The 2nd jet gains on the 1st at 180 km/hr (744 - 56) 
t = 282/180 hours (that's an equation) 
t = 1.56666.... hours 
t = 1 hour 34 minutes 
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Planes don't use km/hr, they use knots. 
 
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