SOLUTION: at 10:30 A.M two planes leave Houston, one flying east at 560 km/h and the other fliying west at 640 km/h. At what time will they be 2100 km apart?

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Question 104181This question is from textbook algebra and trigonometry
: at 10:30 A.M two planes leave Houston, one flying east at 560 km/h and the other fliying west at 640 km/h. At what time will they be 2100 km apart? This question is from textbook algebra and trigonometry

Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
640X+560X=2100
1200X=2100
X=2100/1200
X=1.75 OR 1 HOUR 45 MINUTES AFTER THEY LEAVE THEY'LL BE 1200 MILES APART.
10:30+1:45=12:15 PM.