SOLUTION: a car crosses the gw bridge westbound and travels on route 80 at 54 miles per hour. a second car crosses the bridge 25 minutes later and travels at 63 miles per hour, also wesbound

Question 849579: a car crosses the gw bridge westbound and travels on route 80 at 54 miles per hour. a second car crosses the bridge 25 minutes later and travels at 63 miles per hour, also wesbound on route 80. determine how far the cars travel until one passes the other.

Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
a car crosses the gw bridge westbound and travels on route 80 at 54 miles per hour. a second car crosses the bridge 25 minutes later and travels at 63 miles per hour, also wesbound on route 80. determine how far the cars travel until one passes the other.
***
let x=travel time of 1st car
x-(25/60)=x-(5/12)=travel time of 2nd car
distance=speed*travel time
..
54x=63(x-(5/12))
54x=63x-315/12
9x=315/12
x=315/108
distance=54x=54*(315/108)=157.5
how far did the cars travel until one passes the other=157.5 miles

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