A car drives downhill with the speed of 90 m/h. On a level road, the same car goes 72 m/h, and uphill it goes "only" 60 m/h.
It takes this car 5 hours to go from town A to town B. The return trip only takes 4 hours.
Find the distance between the two towns.
Hmmm... How do you get y=124-2x ?
I get y=144-2x when I plug it in. Back to the notes to check myself...
Posted by levik
on 2002-05-15 11:57:44