Transportation Two trains leave the same city at the same time, one going north and the other cast. The east- bound train travels 20 mph faster than the northbound one. After 5 hours, the trains are 300 miles apart. Determine the speed of each train, using the following steps.
(a) Let x denote the speed of the northbound train. Express the speed of the eastbound train in terms of x.
(b) Write expressions that give the distance traveled by each train after 5 hours.
(c) Use part (b) and the fact that the trains are 300 miles apart after 5 hours to write an equation. (A diagram of the situation may help.)
(d) Solve the equation and determine the speeds of the trains.
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