Question 1031680
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a passenger train travels 100 mph faster than a car. in the time it take the car to travel 140 miles 
the train can travel 340 mile. Find the speed of each.
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The equation is 

{{{140/c}}} = {{{340/(c+100)}}},   (1)

where "c" is the speed of car (in mph), now unknown.

To solve (1), multiply both sides by c*(c+100).

And so on . . . 
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