SOLUTION: Two buses leave a town heading in opposite directions. One bus travels east at 63 mph. The other bus travels west at 70 mph, but leaves 30 minutes later. How long will it take them

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Question 1061100: Two buses leave a town heading in opposite directions. One bus travels east at 63 mph. The other bus travels west at 70 mph, but leaves 30 minutes later. How long will it take them to get 100 miles apart?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Constant Travel Rate Rule, RT=D for RATE, TIME, DISTANCE;
Time in hours and distance in miles.
           SPEEDS       TIMES        DISTANCES

EAST         63          t%2B1%2F2

WEST         70           t

Total                                  100




Filling in the empty slots

           SPEEDS       TIMES        DISTANCES

EAST         63          t%2B1%2F2       63%28t%2B1%2F2%29

WEST         70           t          70t

Total                                  100


highlight%2863%28t%2B1%2F2%29%2B70t=100%29
Solve this for t.