two trains leave the station at the same time, one heading west and the other heading east. the westbound train travels at 65 mi les per hour. the eastbound train travels at 85 miles per hour. how long will it take for the two trains to be 390 miles apart
2 answers:
Hour one: Eastbound train- 65 mi Westbound train- 85 mi 150 miles apart Hour two: Eastbound train- 130 mi Westbound train- 170 mi 300 miles apart Eastbound train travels 32.5 miles in 30 min, Westbound train travels 42.5 miles in 30 min Two and a half hours: Eastbound train- 162.5 mi Westbound train- 212.5 mi
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explanation: 125 + 15x = 245
You then have to subtract 125 from both sides so we can isolate our variable which will give us 15x = 120 . Divide 15 from both sides : 15x/15 = 120/15 which will give us x = 8.
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