Posted by Colin on Monday, October 15, 2007 at 6:47pm.
an amtrak trainand a car leave new york city at 2 PM and head for a town 300 miles away. the rate of the amtrak train is 1 1/2 times the rate of the car. the train arrives 2h ahead of the car, find the rate of the car

Algebra  Reiny, Monday, October 15, 2007 at 7:57pm
let the speed of the train be x miles/hour
then the speed of the car is 1.5x miles/hour.
Time taken by train = 300/x hours
Time taken by the car = 300/1.5 hours
So 300/x  300/1.5x = 2
solve for x
(I got x=50, so car = 50, train = 75) 
Algebra  Sarah, Monday, October 15, 2007 at 8:17pm
ur right