SOLUTION: Hi mr lee plans to dine at a restaurant 900km away.he took a train which travelled part of the way at an average speed of 177.8km/hr and the rest by bus at 80km/hr.the total time

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Question 1000376: Hi
mr lee plans to dine at a restaurant 900km away.he took a train which travelled part of the way
at an average speed of 177.8km/hr and the rest by bus at 80km/hr.the total time taken was
5 11/80 hrs.what was the distance he travelled at 80km/hr
thanking you
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
RT=D basic uniform travel rates rule to relate rate, time, distance
             rate          time        distances
train         177.8          x         177.8*x
bus            80            y         80*y
total                      5&11/80     900

Find two linear equations in the variables x and y; and you want a solution for the value of y.